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60102157 = 173535421
BaseRepresentation
bin1110010101000…
…1011000001101
311012002111122211
43211101120031
5110341232112
65544110421
71326600643
oct345213015
9135074584
1060102157
1130a20705
1218165411
13c5b460b
147da7193
1554230a7
hex395160d

60102157 has 4 divisors (see below), whose sum is σ = 63637596. Its totient is φ = 56566720.

The previous prime is 60102127. The next prime is 60102167. The reversal of 60102157 is 75120106.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75120106 = 237560053.

It can be written as a sum of positive squares in 2 ways, for example, as 24413481 + 35688676 = 4941^2 + 5974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-60102157 is a prime.

It is a super-2 number, since 2×601021572 = 7224538552105298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60102127) 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, 1767694 + ... + 1767727.

It is an arithmetic number, because the mean of its divisors is an integer number (15909399).

Almost surely, 260102157 is an apocalyptic number.

It is an amenable number.

60102157 is a deficient number, since it is larger than the sum of its proper divisors (3535439).

60102157 is a wasteful number, since it uses less digits than its factorization.

60102157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535438.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 60102157 is about 7752.5580939455. The cubic root of 60102157 is about 391.7088221011.

The spelling of 60102157 in words is "sixty million, one hundred two thousand, one hundred fifty-seven".

Divisors: 1 17 3535421 60102157