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57663478168 = 23172659159457
BaseRepresentation
bin110101101101000000…
…101101100110011000
312111211200000012100121
4311231000231212120
51421043322300133
642253520243024
74110645322462
oct655500554630
9174750005317
1057663478168
112250059168a
12b213470474
13558c6686aa
142b10439132
15177756a02d
hexd6d02d998

57663478168 has 32 divisors (see below), whose sum is σ = 114522735600. Its totient is φ = 27125379072.

The previous prime is 57663478127. The next prime is 57663478199. The reversal of 57663478168 is 86187436675.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281896 + ... + 441352.

Almost surely, 257663478168 is an apocalyptic number.

It is an amenable number.

57663478168 is a deficient number, since it is larger than the sum of its proper divisors (56859257432).

57663478168 is a wasteful number, since it uses less digits than its factorization.

57663478168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162139 (or 162135 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 61.

The spelling of 57663478168 in words is "fifty-seven billion, six hundred sixty-three million, four hundred seventy-eight thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 17 34 68 136 2659 5318 10636 21272 45203 90406 159457 180812 318914 361624 637828 1275656 2710769 5421538 10843076 21686152 423996163 847992326 1695984652 3391969304 7207934771 14415869542 28831739084 57663478168