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76072621682 = 21950292
BaseRepresentation
bin100011011011001001…
…0000001011001110010
321021100122001120202202
41012312102001121302
52221244042343212
654540340143202
75332102421021
oct1066622013162
9237318046682
1076072621682
112a298014682
12128b0697b02
13723458c315
14397932a8b8
151ea37e10c2
hex11b6481672

76072621682 has 6 divisors (see below), whose sum is σ = 114109517613. Its totient is φ = 38036115812.

The previous prime is 76072621673. The next prime is 76072621697. The reversal of 76072621682 is 28612627067.

It can be written as a sum of positive squares in 2 ways, for example, as 68984497201 + 7088124481 = 262649^2 + 84191^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=195029.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 292544 + ... + 487572.

Almost surely, 276072621682 is an apocalyptic number.

76072621682 is a deficient number, since it is larger than the sum of its proper divisors (38036895931).

76072621682 is an frugal number, since it uses more digits than its factorization.

76072621682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390060 (or 195031 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 76072621682 in words is "seventy-six billion, seventy-two million, six hundred twenty-one thousand, six hundred eighty-two".

Divisors: 1 2 195029 390058 38036310841 76072621682