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68473256108 = 22229281266023
BaseRepresentation
bin111111110001010100…
…101111100010101100
320112202000111210222112
4333301110233202230
52110213123143413
651242311303152
74642555034165
oct776124574254
9215660453875
1068473256108
1127048405864
121132b67aab8
1365c30504ba
143457d5076c
151bab5822a8
hexff152f8ac

68473256108 has 24 divisors (see below), whose sum is σ = 120780216480. Its totient is φ = 33965688960.

The previous prime is 68473256107. The next prime is 68473256123. The reversal of 68473256108 is 80165237486.

It is not an unprimeable number, because it can be changed into a prime (68473256101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124385 + ... + 390407.

It is an arithmetic number, because the mean of its divisors is an integer number (5032509020).

Almost surely, 268473256108 is an apocalyptic number.

It is an amenable number.

68473256108 is a deficient number, since it is larger than the sum of its proper divisors (52306960372).

68473256108 is a wasteful number, since it uses less digits than its factorization.

68473256108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266537 (or 266535 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 68473256108 in words is "sixty-eight billion, four hundred seventy-three million, two hundred fifty-six thousand, one hundred eight".

Divisors: 1 2 4 229 281 458 562 916 1124 64349 128698 257396 266023 532046 1064092 60919267 74752463 121838534 149504926 243677068 299009852 17118314027 34236628054 68473256108