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168790700 = 225213157827
BaseRepresentation
bin10100000111110…
…00101010101100
3102202121110022102
422003320222230
5321202300300
624425434232
74116461111
oct1203705254
9382543272
10168790700
1187306a51
124863b978
1328c7aa70
14185ba908
15ec420d5
hexa0f8aac

168790700 has 72 divisors (see below), whose sum is σ = 397443312. Its totient is φ = 61850880.

The previous prime is 168790679. The next prime is 168790703. The reversal of 168790700 is 7097861.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (168790703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203687 + ... + 204513.

It is an arithmetic number, because the mean of its divisors is an integer number (5520046).

Almost surely, 2168790700 is an apocalyptic number.

168790700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168790700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198721656).

168790700 is an abundant number, since it is smaller than the sum of its proper divisors (228652612).

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

168790700 is a wasteful number, since it uses less digits than its factorization.

168790700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011 (or 1004 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 168790700 is about 12991.9475060516. The cubic root of 168790700 is about 552.6491479158.

The spelling of 168790700 in words is "one hundred sixty-eight million, seven hundred ninety thousand, seven hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 157 260 314 325 628 650 785 827 1300 1570 1654 2041 3140 3308 3925 4082 4135 7850 8164 8270 10205 10751 15700 16540 20410 20675 21502 40820 41350 43004 51025 53755 82700 102050 107510 129839 204100 215020 259678 268775 519356 537550 649195 1075100 1298390 1687907 2596780 3245975 3375814 6491950 6751628 8439535 12983900 16879070 33758140 42197675 84395350 168790700