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53512542 = 233990973
BaseRepresentation
bin1100110000100…
…0100101011110
310201200201102000
43030020211132
5102144400132
65150543130
71216564146
oct314104536
9121621360
1053512542
112822a846
1215b07aa6
13b118135
14716d926
154a7087c
hex330895e

53512542 has 16 divisors (see below), whose sum is σ = 118916880. Its totient is φ = 17837496.

The previous prime is 53512523. The next prime is 53512561. The reversal of 53512542 is 24521535.

It is a happy number.

53512542 is a `hidden beast` number, since 535 + 125 + 4 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (53512523) and next prime (53512561).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 495433 + ... + 495540.

It is an arithmetic number, because the mean of its divisors is an integer number (7432305).

Almost surely, 253512542 is an apocalyptic number.

53512542 is an abundant number, since it is smaller than the sum of its proper divisors (65404338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53512542 is a wasteful number, since it uses less digits than its factorization.

53512542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990984 (or 990978 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 53512542 is about 7315.2267223921. The cubic root of 53512542 is about 376.8355447421.

The spelling of 53512542 in words is "fifty-three million, five hundred twelve thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 990973 1981946 2972919 5945838 8918757 17837514 26756271 53512542