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51141252 = 22337115183
BaseRepresentation
bin1100001100010…
…1101010000100
310120020020121110
43003011222010
5101043010002
65024045020
71160456601
oct303055204
9116206543
1051141252
11269601a8
1215163770
13a7979c6
146b136a8
154752e6c
hex30c5a84

51141252 has 24 divisors (see below), whose sum is σ = 122555776. Its totient is φ = 16586208.

The previous prime is 51141247. The next prime is 51141263. The reversal of 51141252 is 25214115.

It is a super-2 number, since 2×511412522 = 5230855312255008, which contains 22 as substring.

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, 57148 + ... + 58035.

Almost surely, 251141252 is an apocalyptic number.

It is an amenable number.

51141252 is an abundant number, since it is smaller than the sum of its proper divisors (71414524).

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

51141252 is a wasteful number, since it uses less digits than its factorization.

51141252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115227 (or 115225 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 51141252 is about 7151.3112084428. The cubic root of 51141252 is about 371.1850293860.

Adding to 51141252 its reverse (25214115), we get a palindrome (76355367).

The spelling of 51141252 in words is "fifty-one million, one hundred forty-one thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 115183 230366 345549 460732 691098 1382196 4261771 8523542 12785313 17047084 25570626 51141252