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33068471980 = 22510715452557
BaseRepresentation
bin11110110011000010…
…001101011010101100
310011100121011102121111
4132303002031122230
51020211012100410
623105204041404
72250316242205
oct366302153254
9104317142544
1033068471980
111302a321495
1264aa693264
1331700017ab
141859b965ac
15cd81e5b8a
hex7b308d6ac

33068471980 has 24 divisors (see below), whose sum is σ = 70092803088. Its totient is φ = 13103767488.

The previous prime is 33068471939. The next prime is 33068471981. The reversal of 33068471980 is 8917486033.

It is a happy number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (33068471981) 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, 7724139 + ... + 7728418.

It is an arithmetic number, because the mean of its divisors is an integer number (2920533462).

Almost surely, 233068471980 is an apocalyptic number.

It is an amenable number.

33068471980 is an abundant number, since it is smaller than the sum of its proper divisors (37024331108).

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

33068471980 is a wasteful number, since it uses less digits than its factorization.

33068471980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15452673 (or 15452671 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 33068471980 in words is "thirty-three billion, sixty-eight million, four hundred seventy-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 107 214 428 535 1070 2140 15452557 30905114 61810228 77262785 154525570 309051140 1653423599 3306847198 6613694396 8267117995 16534235990 33068471980