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76809454 = 2139276293
BaseRepresentation
bin1001001010000…
…00010011101110
312100112022202121
410211000103232
5124130400304
611342143154
71621604161
oct445002356
9170468677
1076809454
113a3a2097
1221881aba
1312bb40a7
14a2b5ad8
156b23554
hex49404ee

76809454 has 8 divisors (see below), whose sum is σ = 116043480. Its totient is φ = 38128296.

The previous prime is 76809449. The next prime is 76809463. The reversal of 76809454 is 45490867.

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

It is a self number, because there is not a number n which added to its sum of digits gives 76809454.

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 in 3 ways as a sum of consecutive naturals, for example, 137869 + ... + 138424.

It is an arithmetic number, because the mean of its divisors is an integer number (14505435).

Almost surely, 276809454 is an apocalyptic number.

76809454 is a deficient number, since it is larger than the sum of its proper divisors (39234026).

76809454 is a wasteful number, since it uses less digits than its factorization.

76809454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276434.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 76809454 is about 8764.1002960943. The cubic root of 76809454 is about 425.0808685791.

The spelling of 76809454 in words is "seventy-six million, eight hundred nine thousand, four hundred fifty-four".

Divisors: 1 2 139 278 276293 552586 38404727 76809454