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76809934 = 238404967
BaseRepresentation
bin1001001010000…
…00011011001110
312100112100102101
410211000123032
5124130404214
611342145314
71621605445
oct445003316
9170470371
1076809934
113a3a2493
122188223a
1312bb4386
14a2b5d5c
156b23774
hex49406ce

76809934 has 4 divisors (see below), whose sum is σ = 115214904. Its totient is φ = 38404966.

The previous prime is 76809923. The next prime is 76809959. The reversal of 76809934 is 43990867.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×768099342 = 11799531922168712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19202482 + ... + 19202485.

It is an arithmetic number, because the mean of its divisors is an integer number (28803726).

Almost surely, 276809934 is an apocalyptic number.

76809934 is a deficient number, since it is larger than the sum of its proper divisors (38404970).

76809934 is a wasteful number, since it uses less digits than its factorization.

76809934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38404969.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 76809934 is about 8764.1276804939. The cubic root of 76809934 is about 425.0817540534.

The spelling of 76809934 in words is "seventy-six million, eight hundred nine thousand, nine hundred thirty-four".

Divisors: 1 2 38404967 76809934