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68453396496 = 2432218032
BaseRepresentation
bin111111110000001000…
…111111000000010000
320112200122010211201100
4333300020333000100
52110143032141441
651240321504400
74642224161352
oct776010770020
9215618124640
1068453396496
1127038180a61
1211324aa2100
1365bbbb8c54
1434554610d2
151ba995ccb6
hexff023f010

68453396496 has 45 divisors (see below), whose sum is σ = 191583223039. Its totient is φ = 22816752288.

The previous prime is 68453396461. The next prime is 68453396497. The reversal of 68453396496 is 69469335486.

It is a happy number.

The square root of 68453396496 is 261636.

It is a perfect power (a square), and thus also a powerful number.

68453396496 is a `hidden beast` number, since 6 + 8 + 4 + 53 + 3 + 96 + 496 = 666.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68453396497) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3128731 + ... + 3150533.

Almost surely, 268453396496 is an apocalyptic number.

68453396496 is the 261636-th square number.

It is an amenable number.

68453396496 is an abundant number, since it is smaller than the sum of its proper divisors (123129826543).

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

68453396496 is an frugal number, since it uses more digits than its factorization.

68453396496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43620 (or 21808 counting only the distinct ones).

The product of its digits is 100776960, while the sum is 63.

The spelling of 68453396496 in words is "sixty-eight billion, four hundred fifty-three million, three hundred ninety-six thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 21803 43606 65409 87212 130818 174424 196227 261636 348848 392454 523272 784908 1046544 1569816 3139632 475370809 950741618 1426112427 1901483236 2852224854 3802966472 4278337281 5704449708 7605932944 8556674562 11408899416 17113349124 22817798832 34226698248 68453396496