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76684995 = 3352412357
BaseRepresentation
bin1001001001000…
…01111011000011
312100022000001000
410210201323003
5124112404440
611335343043
71620545262
oct444417303
9170260030
1076684995
113a317632
1221821a83
1312b6c54a
14a2825d9
156aeb730
hex4921ec3

76684995 has 32 divisors (see below), whose sum is σ = 136952640. Its totient is φ = 40711680.

The previous prime is 76684973. The next prime is 76684997. The reversal of 76684995 is 59948667.

It is not a de Polignac number, because 76684995 - 220 = 75636419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76684997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31357 + ... + 33713.

It is an arithmetic number, because the mean of its divisors is an integer number (4279770).

Almost surely, 276684995 is an apocalyptic number.

76684995 is a deficient number, since it is larger than the sum of its proper divisors (60267645).

76684995 is a wasteful number, since it uses less digits than its factorization.

76684995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2606 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 76684995 is about 8756.9969167518. The cubic root of 76684995 is about 424.8511497188.

Adding to 76684995 its sum of digits (54), we get a square (76685049 = 87572).

The spelling of 76684995 in words is "seventy-six million, six hundred eighty-four thousand, nine hundred ninety-five".

Divisors: 1 3 5 9 15 27 45 135 241 723 1205 2169 2357 3615 6507 7071 10845 11785 21213 32535 35355 63639 106065 318195 568037 1704111 2840185 5112333 8520555 15336999 25561665 76684995