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3816906947670 = 23531113228115923
BaseRepresentation
bin110111100010110001011…
…000011111110001010110
3111111220002210210221112210
4313202301120133301112
51000014011134311140
612041243550254250
7542522340512535
oct67426130376126
914456083727483
103816906947670
1112418175134a3
125178aa4b7386
13218c1841c60b
14d2a4c83831c
1569446e7bd80
hex378b161fc56

3816906947670 has 128 divisors (see below), whose sum is σ = 9544542916608. Its totient is φ = 975802060800.

The previous prime is 3816906947647. The next prime is 3816906947731. The reversal of 3816906947670 is 767496096183.

It is a super-2 number, since 2×38169069476702 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 239702329 + ... + 239718251.

It is an arithmetic number, because the mean of its divisors is an integer number (74566741536).

Almost surely, 23816906947670 is an apocalyptic number.

3816906947670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3816906947670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4772271458304).

3816906947670 is an abundant number, since it is smaller than the sum of its proper divisors (5727635968938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3816906947670 is a wasteful number, since it uses less digits than its factorization.

3816906947670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18358.

The product of its (nonzero) digits is 82301184, while the sum is 66.

The spelling of 3816906947670 in words is "three trillion, eight hundred sixteen billion, nine hundred six million, nine hundred forty-seven thousand, six hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 113 155 186 226 310 339 465 565 678 930 1130 1695 2281 3390 3503 4562 6843 7006 10509 11405 13686 15923 17515 21018 22810 31846 34215 35030 47769 52545 68430 70711 79615 95538 105090 141422 159230 212133 238845 257753 353555 424266 477690 493613 515506 707110 773259 987226 1060665 1288765 1480839 1546518 1799299 2121330 2468065 2577530 2961678 3598598 3866295 4936130 5397897 7404195 7732590 7990343 8996495 10795794 14808390 15980686 17992990 23971029 26989485 36320363 39951715 47942058 53978970 55778269 72640726 79903430 108961089 111556538 119855145 167334807 181601815 217922178 239710290 278891345 334669614 363203630 544805445 557782690 836674035 1089610890 1125931253 1673348070 2251862506 3377793759 4104201019 5629656265 6755587518 8208402038 11259312530 12312603057 16888968795 20521005095 24625206114 33777937590 41042010190 61563015285 123126030570 127230231589 254460463178 381690694767 636151157945 763381389534 1272302315890 1908453473835 3816906947670