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52158117 = 31110115649
BaseRepresentation
bin1100011011110…
…1111010100101
310122010220111010
43012331322211
5101323024432
65101532433
71202223324
oct306757245
9118126433
1052158117
1127495190
1215574119
13aa627bb
146cda0bb
1548a43cc
hex31bdea5

52158117 has 16 divisors (see below), whose sum is σ = 76622400. Its totient is φ = 31296000.

The previous prime is 52158107. The next prime is 52158131. The reversal of 52158117 is 71185125.

It is not a de Polignac number, because 52158117 - 210 = 52157093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52158107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4492 + ... + 11157.

It is an arithmetic number, because the mean of its divisors is an integer number (4788900).

Almost surely, 252158117 is an apocalyptic number.

It is an amenable number.

52158117 is a deficient number, since it is larger than the sum of its proper divisors (24464283).

52158117 is a wasteful number, since it uses less digits than its factorization.

52158117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15764.

The product of its digits is 2800, while the sum is 30.

The square root of 52158117 is about 7222.0576707750. The cubic root of 52158117 is about 373.6290492026.

The spelling of 52158117 in words is "fifty-two million, one hundred fifty-eight thousand, one hundred seventeen".

Divisors: 1 3 11 33 101 303 1111 3333 15649 46947 172139 516417 1580549 4741647 17386039 52158117