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61276379 = 251244129
BaseRepresentation
bin1110100111000…
…0000011011011
311021022011101112
43221300003123
5111141321004
610025210535
71342561223
oct351600333
9137264345
1061276379
113165293a
1218630a4b
13c905c18
1481d1083
1555a5e6e
hex3a700db

61276379 has 4 divisors (see below), whose sum is σ = 61520760. Its totient is φ = 61032000.

The previous prime is 61276339. The next prime is 61276433. The reversal of 61276379 is 97367216.

61276379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61276379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61276339) by changing a digit.

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, 121814 + ... + 122315.

It is an arithmetic number, because the mean of its divisors is an integer number (15380190).

Almost surely, 261276379 is an apocalyptic number.

61276379 is a deficient number, since it is larger than the sum of its proper divisors (244381).

61276379 is a wasteful number, since it uses less digits than its factorization.

61276379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244380.

The product of its digits is 95256, while the sum is 41.

The square root of 61276379 is about 7827.9230323247. The cubic root of 61276379 is about 394.2433391625.

The spelling of 61276379 in words is "sixty-one million, two hundred seventy-six thousand, three hundred seventy-nine".

Divisors: 1 251 244129 61276379