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51235292 = 2279281577
BaseRepresentation
bin1100001101110…
…0100111011100
310120102000121102
43003130213130
5101104012132
65030052232
71161331013
oct303344734
9116360542
1051235292
1126a14919
12151aa078
13a7cb754
146b39a7a
154770c62
hex30dc9dc

51235292 has 24 divisors (see below), whose sum is σ = 91277760. Its totient is φ = 25159680.

The previous prime is 51235291. The next prime is 51235309. The reversal of 51235292 is 29253215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51235291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88508 + ... + 89084.

It is an arithmetic number, because the mean of its divisors is an integer number (3803240).

Almost surely, 251235292 is an apocalyptic number.

It is an amenable number.

51235292 is a deficient number, since it is larger than the sum of its proper divisors (40042468).

51235292 is a wasteful number, since it uses less digits than its factorization.

51235292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941 (or 939 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 51235292 is about 7157.8832066471. The cubic root of 51235292 is about 371.4124052981.

The spelling of 51235292 in words is "fifty-one million, two hundred thirty-five thousand, two hundred ninety-two".

Divisors: 1 2 4 79 158 281 316 562 577 1124 1154 2308 22199 44398 45583 88796 91166 162137 182332 324274 648548 12808823 25617646 51235292