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6866742542 = 21110913121859
BaseRepresentation
bin1100110010100101…
…00010110100001110
3122201112222122220212
412121102202310032
5103030341230132
63053214042422
7332110230362
oct63122426416
918645878825
106866742542
112a04108340
1213b77a9412
1385581988a
14491d8d2a2
152a2c955b2
hex1994a2d0e

6866742542 has 32 divisors (see below), whose sum is σ = 11426659200. Its totient is φ = 3068863200.

The previous prime is 6866742521. The next prime is 6866742577. The reversal of 6866742542 is 2452476686.

It is a super-2 number, since 2×68667425422 = 94304306276225243528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303209 + ... + 325067.

It is an arithmetic number, because the mean of its divisors is an integer number (357083100).

Almost surely, 26866742542 is an apocalyptic number.

6866742542 is a deficient number, since it is larger than the sum of its proper divisors (4559916658).

6866742542 is a wasteful number, since it uses less digits than its factorization.

6866742542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22112.

The product of its digits is 3870720, while the sum is 50.

The square root of 6866742542 is about 82865.8104528038. The cubic root of 6866742542 is about 1900.7146473247.

The spelling of 6866742542 in words is "six billion, eight hundred sixty-six million, seven hundred forty-two thousand, five hundred forty-two".

Divisors: 1 2 11 22 109 131 218 262 1199 1441 2398 2882 14279 21859 28558 43718 157069 240449 314138 480898 2382631 2863529 4765262 5727058 26208941 31498819 52417882 62997638 312124661 624249322 3433371271 6866742542