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77042036 = 22191013711
BaseRepresentation
bin1001001011110…
…01000101110100
312100222010210202
410211321011310
5124210321121
611351140032
71623563231
oct445710564
9170863722
1077042036
113a540905
1221974618
1312c65c06
14a336788
156b6c40b
hex4979174

77042036 has 12 divisors (see below), whose sum is σ = 141919680. Its totient is φ = 36493560.

The previous prime is 77041997. The next prime is 77042047. The reversal of 77042036 is 63024077.

It is a super-2 number, since 2×770420362 = 11870950622050592, 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506780 + ... + 506931.

It is an arithmetic number, because the mean of its divisors is an integer number (11826640).

Almost surely, 277042036 is an apocalyptic number.

77042036 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

77042036 is a deficient number, since it is larger than the sum of its proper divisors (64877644).

77042036 is a wasteful number, since it uses less digits than its factorization.

77042036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013734 (or 1013732 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 77042036 is about 8777.3592839760. The cubic root of 77042036 is about 425.5094900173.

The spelling of 77042036 in words is "seventy-seven million, forty-two thousand, thirty-six".

Divisors: 1 2 4 19 38 76 1013711 2027422 4054844 19260509 38521018 77042036