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83139168092040 = 233251741268749367
BaseRepresentation
bin10010111001110101011000…
…100101001011111110001000
3101220101000201120102212122100
4102321311120211023332020
541344123004012421130
6452453335003153400
723340415042464204
oct2271653045137610
9356330646385570
1083139168092040
1124544139a55215
1293a8b17215860
133750cb3aab978
141675d58805b04
15992991d22c60
hex4b9d5894bf88

83139168092040 has 192 divisors, whose sum is σ = 270463591157760. Its totient is φ = 22149015575040.

The previous prime is 83139168091951. The next prime is 83139168092059. The reversal of 83139168092040 is 4029086193138.

It is a super-2 number, since 2×831391680920402 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1684079437 + ... + 1684128803.

It is an arithmetic number, because the mean of its divisors is an integer number (1408664537280).

Almost surely, 283139168092040 is an apocalyptic number.

It is an amenable number.

83139168092040 is an abundant number, since it is smaller than the sum of its proper divisors (187324423065720).

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

83139168092040 is a wasteful number, since it uses less digits than its factorization.

83139168092040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53812 (or 53805 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 83139168092040 in words is "eighty-three trillion, one hundred thirty-nine billion, one hundred sixty-eight million, ninety-two thousand, forty".