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76899630 = 2354395839
BaseRepresentation
bin1001001010101…
…10010100101110
312100200220110110
410211112110232
5124141242010
611344120450
71622431113
oct445262456
9170626413
1076899630
113a453915
1221906126
1312c16152
14a2da90a
156b40120
hex495652e

76899630 has 32 divisors (see below), whose sum is σ = 185011200. Its totient is φ = 20456352.

The previous prime is 76899629. The next prime is 76899637. The reversal of 76899630 is 3699867.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 76899630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76899637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10251 + ... + 16089.

It is an arithmetic number, because the mean of its divisors is an integer number (5781600).

Almost surely, 276899630 is an apocalyptic number.

76899630 is an abundant number, since it is smaller than the sum of its proper divisors (108111570).

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

76899630 is a wasteful number, since it uses less digits than its factorization.

76899630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6288.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 76899630 is about 8769.2434109221. The cubic root of 76899630 is about 425.2471549726.

The spelling of 76899630 in words is "seventy-six million, eight hundred ninety-nine thousand, six hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 439 878 1317 2195 2634 4390 5839 6585 11678 13170 17517 29195 35034 58390 87585 175170 2563321 5126642 7689963 12816605 15379926 25633210 38449815 76899630