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51234292 = 2243329581
BaseRepresentation
bin1100001101110…
…0010111110100
310120101222020101
43003130113310
5101103444132
65030043444
71161325054
oct303342764
9116358211
1051234292
1126a1409a
12151a9584
13a7cb165
146b39564
1547707e7
hex30dc5f4

51234292 has 12 divisors (see below), whose sum is σ = 89870116. Its totient is φ = 25557120.

The previous prime is 51234259. The next prime is 51234299. The reversal of 51234292 is 29243215.

It can be written as a sum of positive squares in 2 ways, for example, as 20830096 + 30404196 = 4564^2 + 5514^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51234292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51234299) 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, 13059 + ... + 16522.

Almost surely, 251234292 is an apocalyptic number.

It is an amenable number.

51234292 is a deficient number, since it is larger than the sum of its proper divisors (38635824).

51234292 is a wasteful number, since it uses less digits than its factorization.

51234292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30018 (or 30016 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 51234292 is about 7157.8133532525. The cubic root of 51234292 is about 371.4099888985.

The spelling of 51234292 in words is "fifty-one million, two hundred thirty-four thousand, two hundred ninety-two".

Divisors: 1 2 4 433 866 1732 29581 59162 118324 12808573 25617146 51234292