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76007920 = 245950099
BaseRepresentation
bin1001000011111…
…00100111110000
312022000121021011
410201330213300
5123424223140
611313040304
71612025302
oct441744760
9168017234
1076007920
11399a496a
1221556094
1312993301
14a147972
156a15cea
hex487c9f0

76007920 has 20 divisors (see below), whose sum is σ = 176718600. Its totient is φ = 30403136.

The previous prime is 76007909. The next prime is 76007941. The reversal of 76007920 is 2970067.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

76007920 is a modest number, since divided by 7920 gives 7600 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 474970 + ... + 475129.

It is an arithmetic number, because the mean of its divisors is an integer number (8835930).

Almost surely, 276007920 is an apocalyptic number.

It is an amenable number.

76007920 is an abundant number, since it is smaller than the sum of its proper divisors (100710680).

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

76007920 is a wasteful number, since it uses less digits than its factorization.

76007920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950112 (or 950106 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 76007920 is about 8718.2521184008. The cubic root of 76007920 is about 423.5970718279.

Adding to 76007920 its reverse (2970067), we get a palindrome (78977987).

The spelling of 76007920 in words is "seventy-six million, seven thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 950099 1900198 3800396 4750495 7600792 9500990 15201584 19001980 38003960 76007920