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76965940 = 22514292693
BaseRepresentation
bin1001001011001…
…10100000110100
312100211021102101
410211212200310
5124200402230
611345351444
71623125332
oct445464064
9170737371
1076965940
113a499717
1221938584
1312c3a39c
14a316b52
156b54aca
hex4966834

76965940 has 24 divisors (see below), whose sum is σ = 161801640. Its totient is φ = 30753408.

The previous prime is 76965929. The next prime is 76965943. The reversal of 76965940 is 4956967.

It can be written as a sum of positive squares in 4 ways, for example, as 17956 + 76947984 = 134^2 + 8772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76965943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27234 + ... + 29926.

It is an arithmetic number, because the mean of its divisors is an integer number (6741735).

Almost surely, 276965940 is an apocalyptic number.

It is an amenable number.

76965940 is an abundant number, since it is smaller than the sum of its proper divisors (84835700).

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

76965940 is a wasteful number, since it uses less digits than its factorization.

76965940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4131 (or 4129 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 76965940 is about 8773.0234241110. The cubic root of 76965940 is about 425.3693490487.

The spelling of 76965940 in words is "seventy-six million, nine hundred sixty-five thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 1429 2693 2858 5386 5716 7145 10772 13465 14290 26930 28580 53860 3848297 7696594 15393188 19241485 38482970 76965940