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79252049 = 97181619
BaseRepresentation
bin1001011100101…
…00101001010001
312112010102101002
410232110221101
5130242031144
611510351345
71651426352
oct456245121
9175112332
1079252049
1140810268
122265b555
131355ab06
14a74dd29
156e5714e
hex4b94a51

79252049 has 4 divisors (see below), whose sum is σ = 79334640. Its totient is φ = 79169460.

The previous prime is 79252037. The next prime is 79252051. The reversal of 79252049 is 94025297.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-79252049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79252009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39839 + ... + 41780.

It is an arithmetic number, because the mean of its divisors is an integer number (19833660).

Almost surely, 279252049 is an apocalyptic number.

It is an amenable number.

79252049 is a deficient number, since it is larger than the sum of its proper divisors (82591).

79252049 is an equidigital number, since it uses as much as digits as its factorization.

79252049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82590.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 79252049 is about 8902.3619899440. The cubic root of 79252049 is about 429.5398882292.

The spelling of 79252049 in words is "seventy-nine million, two hundred fifty-two thousand, forty-nine".

Divisors: 1 971 81619 79252049