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76990434 = 2312831739
BaseRepresentation
bin1001001011011…
…00011111100010
312100212112000120
410211230133202
5124202143214
611350101110
71623256623
oct445543742
9170775016
1076990434
113a506064
122194a796
1312c48591
14a321a4a
156b5bea9
hex496c7e2

76990434 has 8 divisors (see below), whose sum is σ = 153980880. Its totient is φ = 25663476.

The previous prime is 76990421. The next prime is 76990493. The reversal of 76990434 is 43409967.

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

76990434 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6415864 + ... + 6415875.

It is an arithmetic number, because the mean of its divisors is an integer number (19247610).

Almost surely, 276990434 is an apocalyptic number.

76990434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

76990434 is a wasteful number, since it uses less digits than its factorization.

76990434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12831744.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 76990434 is about 8774.4192970247. The cubic root of 76990434 is about 425.4144681051.

The spelling of 76990434 in words is "seventy-six million, nine hundred ninety thousand, four hundred thirty-four".

Divisors: 1 2 3 6 12831739 25663478 38495217 76990434