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61025315 = 5136115391
BaseRepresentation
bin1110100011001…
…0110000100011
311020211101222212
43220302300203
5111110302230
610015552335
71340464241
oct350626043
9136741885
1061025315
11314a124a
121852b6ab
13c848870
148167791
155556895
hex3a32c23

61025315 has 16 divisors (see below), whose sum is σ = 80161536. Its totient is φ = 44323200.

The previous prime is 61025273. The next prime is 61025323. The reversal of 61025315 is 51352016.

It is not a de Polignac number, because 61025315 - 28 = 61025059 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3731 + ... + 11660.

It is an arithmetic number, because the mean of its divisors is an integer number (5010096).

Almost surely, 261025315 is an apocalyptic number.

61025315 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61025315 is a deficient number, since it is larger than the sum of its proper divisors (19136221).

61025315 is a wasteful number, since it uses less digits than its factorization.

61025315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15470.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 61025315 is about 7811.8701346093. The cubic root of 61025315 is about 393.7041656567.

The spelling of 61025315 in words is "sixty-one million, twenty-five thousand, three hundred fifteen".

Divisors: 1 5 13 61 65 305 793 3965 15391 76955 200083 938851 1000415 4694255 12205063 61025315