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30741185457870 = 2359738472746031
BaseRepresentation
bin1101111110101011111010…
…11100000110111011001110
311000211211101001220012012120
412333111331130012323032
513012130421434122440
6145214150003513410
76321656143004016
oct677257534067316
9130754331805176
1030741185457870
119882299851838
123545a20988866
13141cb5c430ab4
14783c4a484c46
153849ae97edd0
hex1bf57d706ece

30741185457870 has 64 divisors (see below), whose sum is σ = 74558854895616. Its totient is φ = 8111025699840.

The previous prime is 30741185457869. The next prime is 30741185457949. The reversal of 30741185457870 is 7875458114703.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9821755 + ... + 12567785.

It is an arithmetic number, because the mean of its divisors is an integer number (1164982107744).

Almost surely, 230741185457870 is an apocalyptic number.

30741185457870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30741185457870 is an abundant number, since it is smaller than the sum of its proper divisors (43817669437746).

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

30741185457870 is a wasteful number, since it uses less digits than its factorization.

30741185457870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2749985.

The product of its (nonzero) digits is 26342400, while the sum is 60.

The spelling of 30741185457870 in words is "thirty trillion, seven hundred forty-one billion, one hundred eighty-five million, four hundred fifty-seven thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 97 194 291 485 582 970 1455 2910 3847 7694 11541 19235 23082 38470 57705 115410 373159 746318 1119477 1865795 2238954 2746031 3731590 5492062 5597385 8238093 11194770 13730155 16476186 27460310 41190465 82380930 266365007 532730014 799095021 1331825035 1598190042 2663650070 3995475105 7990950210 10563981257 21127962514 31691943771 52819906285 63383887542 105639812570 158459718855 316919437710 1024706181929 2049412363858 3074118545787 5123530909645 6148237091574 10247061819290 15370592728935 30741185457870