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76693090 = 257669309
BaseRepresentation
bin1001001001000…
…11111001100010
312100022102010211
410210203321202
5124113134330
611335444334
71620611005
oct444437142
9170272124
1076693090
113a322721
12218266aa
1312b73136
14a28553c
156aedd2a
hex4923e62

76693090 has 8 divisors (see below), whose sum is σ = 138047580. Its totient is φ = 30677232.

The previous prime is 76693073. The next prime is 76693093. The reversal of 76693090 is 9039667.

It can be written as a sum of positive squares in 2 ways, for example, as 72437121 + 4255969 = 8511^2 + 2063^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (76693093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3834645 + ... + 3834664.

Almost surely, 276693090 is an apocalyptic number.

76693090 is a deficient number, since it is larger than the sum of its proper divisors (61354490).

76693090 is a wasteful number, since it uses less digits than its factorization.

76693090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7669316.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 76693090 is about 8757.4591063847. The cubic root of 76693090 is about 424.8660985322.

The spelling of 76693090 in words is "seventy-six million, six hundred ninety-three thousand, ninety".

Divisors: 1 2 5 10 7669309 15338618 38346545 76693090