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68993672462 = 211131372317579
BaseRepresentation
bin100000001000001010…
…1111110010100001110
320121002021202201000022
41000100111332110032
52112244340004322
651410101502142
74661504353061
oct1002025762416
9217067681008
1068993672462
1127295147320
1211455a11952
136676b03380
1434a70dc8d8
151bdc0ce942
hex101057e50e

68993672462 has 32 divisors (see below), whose sum is σ = 121599031680. Its totient is φ = 28944637920.

The previous prime is 68993672431. The next prime is 68993672477. The reversal of 68993672462 is 26427639986.

It is a junction number, because it is equal to n+sod(n) for n = 68993672395 and 68993672404.

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, 3915989 + ... + 3933567.

It is an arithmetic number, because the mean of its divisors is an integer number (3799969740).

Almost surely, 268993672462 is an apocalyptic number.

68993672462 is a deficient number, since it is larger than the sum of its proper divisors (52605359218).

68993672462 is a wasteful number, since it uses less digits than its factorization.

68993672462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31328.

The product of its digits is 47029248, while the sum is 62.

The spelling of 68993672462 in words is "sixty-eight billion, nine hundred ninety-three million, six hundred seventy-two thousand, four hundred sixty-two".

Divisors: 1 2 11 13 22 26 143 286 13723 17579 27446 35158 150953 178399 193369 228527 301906 356798 386738 457054 1962389 2513797 3924778 5027594 241236617 482473234 2653602787 3136076021 5307205574 6272152042 34496836231 68993672462