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76890444 = 2237190247
BaseRepresentation
bin1001001010101…
…00000101001100
312100200102212020
410211110011030
5124140443234
611344010140
71622362251
oct445240514
9170612766
1076890444
113a447a24
1221900950
1312c11c07
14a2d7428
156b3c549
hex495414c

76890444 has 24 divisors (see below), whose sum is σ = 181939968. Its totient is φ = 25268880.

The previous prime is 76890433. The next prime is 76890467. The reversal of 76890444 is 44409867.

It is a junction number, because it is equal to n+sod(n) for n = 76890396 and 76890405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44272 + ... + 45975.

It is an arithmetic number, because the mean of its divisors is an integer number (7580832).

Almost surely, 276890444 is an apocalyptic number.

It is an amenable number.

76890444 is an abundant number, since it is smaller than the sum of its proper divisors (105049524).

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

76890444 is a wasteful number, since it uses less digits than its factorization.

76890444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90325 (or 90323 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 76890444 is about 8768.7196328769. The cubic root of 76890444 is about 425.2302217489.

The spelling of 76890444 in words is "seventy-six million, eight hundred ninety thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 71 142 213 284 426 852 90247 180494 270741 360988 541482 1082964 6407537 12815074 19222611 25630148 38445222 76890444