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76455552381 = 3138861221239
BaseRepresentation
bin100011100110100011…
…0110010010101111101
321022100022121110221020
41013031012302111331
52223040110134011
655042335454353
75344432321035
oct1071506622575
9238308543836
1076455552381
112a47419112a
12129989873b9
137295a05430
1439b412a8c5
151ec7232006
hex11cd1b257d

76455552381 has 16 divisors (see below), whose sum is σ = 109795217280. Its totient is φ = 47044048320.

The previous prime is 76455552359. The next prime is 76455552449. The reversal of 76455552381 is 18325555467.

It is not a de Polignac number, because 76455552381 - 26 = 76455552317 is a prime.

It is a super-2 number, since 2×764555523812 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76455552301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234960 + ... + 456198.

It is an arithmetic number, because the mean of its divisors is an integer number (6862201080).

Almost surely, 276455552381 is an apocalyptic number.

It is an amenable number.

76455552381 is a deficient number, since it is larger than the sum of its proper divisors (33339664899).

76455552381 is a wasteful number, since it uses less digits than its factorization.

76455552381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230116.

The product of its digits is 5040000, while the sum is 51.

The spelling of 76455552381 in words is "seventy-six billion, four hundred fifty-five million, five hundred fifty-two thousand, three hundred eighty-one".

Divisors: 1 3 13 39 8861 26583 115193 221239 345579 663717 2876107 8628321 1960398779 5881196337 25485184127 76455552381