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61572095 = 513947263
BaseRepresentation
bin1110101011100…
…0001111111111
311021212012000222
43222320033333
5111230301340
610035411555
71345232324
oct352701777
9137765028
1061572095
1131835032
1218753bbb
13c9aa6c0
14826ab4b
1556138b5
hex3ab83ff

61572095 has 8 divisors (see below), whose sum is σ = 79570176. Its totient is φ = 45468576.

The previous prime is 61572089. The next prime is 61572101. The reversal of 61572095 is 59027516.

It is an interprime number because it is at equal distance from previous prime (61572089) and next prime (61572101).

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

It is a cyclic number.

It is not a de Polignac number, because 61572095 - 26 = 61572031 is a prime.

It is a super-2 number, since 2×615720952 = 7582245765378050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473567 + ... + 473696.

It is an arithmetic number, because the mean of its divisors is an integer number (9946272).

Almost surely, 261572095 is an apocalyptic number.

61572095 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61572095 is a deficient number, since it is larger than the sum of its proper divisors (17998081).

61572095 is a wasteful number, since it uses less digits than its factorization.

61572095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947281.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 61572095 is about 7846.7888336567. The cubic root of 61572095 is about 394.8765196469.

The spelling of 61572095 in words is "sixty-one million, five hundred seventy-two thousand, ninety-five".

Divisors: 1 5 13 65 947263 4736315 12314419 61572095