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76231089 = 3211270001
BaseRepresentation
bin1001000101100…
…11000110110001
312022102221101200
410202303012301
5124003343324
611321521413
71613645034
oct442630661
9168387350
1076231089
113a037600
1221643269
1312a40a6c
14a1a501b
156a5bec9
hex48b31b1

76231089 has 18 divisors (see below), whose sum is σ = 121033458. Its totient is φ = 46200000.

The previous prime is 76231069. The next prime is 76231091. The reversal of 76231089 is 98013267.

It can be written as a sum of positive squares in only one way, i.e., 73616400 + 2614689 = 8580^2 + 1617^2 .

It is not a de Polignac number, because 76231089 - 27 = 76230961 is a prime.

It is a super-2 number, since 2×762310892 = 11622357860251842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (76231069) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33912 + ... + 36089.

It is an arithmetic number, because the mean of its divisors is an integer number (6724081).

Almost surely, 276231089 is an apocalyptic number.

It is an amenable number.

76231089 is a deficient number, since it is larger than the sum of its proper divisors (44802369).

76231089 is a wasteful number, since it uses less digits than its factorization.

76231089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70029 (or 70015 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 76231089 is about 8731.0416904285. The cubic root of 76231089 is about 424.0112451776.

The spelling of 76231089 in words is "seventy-six million, two hundred thirty-one thousand, eighty-nine".

Divisors: 1 3 9 11 33 99 121 363 1089 70001 210003 630009 770011 2310033 6930099 8470121 25410363 76231089