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68196028100 = 22522329650447
BaseRepresentation
bin111111100000110011…
…001100111011000100
320112000200212011122112
4333200303030323010
52104131140344400
651155005320152
74632650450234
oct774063147304
9215020764575
1068196028100
1126a15975302
1211272866058
13657a796765
14342d1c7cc4
151b92070835
hexfe0cccec4

68196028100 has 36 divisors (see below), whose sum is σ = 154419533184. Its totient is φ = 26092392480.

The previous prime is 68196028051. The next prime is 68196028127. The reversal of 68196028100 is 182069186.

It is a super-2 number, since 2×681960281002 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14822924 + ... + 14827523.

Almost surely, 268196028100 is an apocalyptic number.

It is an amenable number.

68196028100 is an abundant number, since it is smaller than the sum of its proper divisors (86223505084).

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

68196028100 is a wasteful number, since it uses less digits than its factorization.

68196028100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29650484 (or 29650477 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 68196028100 in words is "sixty-eight billion, one hundred ninety-six million, twenty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 23 25 46 50 92 100 115 230 460 575 1150 2300 29650447 59300894 118601788 148252235 296504470 593008940 681960281 741261175 1363920562 1482522350 2727841124 2965044700 3409801405 6819602810 13639205620 17049007025 34098014050 68196028100