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51952404 = 22373171281
BaseRepresentation
bin1100011000101…
…1101100010100
310121202110022010
43012023230110
5101244434104
65053304220
71200405510
oct306135424
9117673263
1051952404
1127364679
1215495070
13a9bcc8a
146c85140
154863489
hex318bb14

51952404 has 96 divisors (see below), whose sum is σ = 145539072. Its totient is φ = 14112000.

The previous prime is 51952379. The next prime is 51952447. The reversal of 51952404 is 40425915.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184744 + ... + 185024.

It is an arithmetic number, because the mean of its divisors is an integer number (1516032).

Almost surely, 251952404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51952404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72769536).

51952404 is an abundant number, since it is smaller than the sum of its proper divisors (93586668).

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

51952404 is a wasteful number, since it uses less digits than its factorization.

51952404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 51952404 is about 7207.8016065927. The cubic root of 51952404 is about 373.1372010466.

The spelling of 51952404 in words is "fifty-one million, nine hundred fifty-two thousand, four hundred four".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 62 71 84 93 124 142 186 213 217 281 284 372 426 434 497 562 651 843 852 868 994 1124 1302 1491 1686 1967 1988 2201 2604 2982 3372 3934 4402 5901 5964 6603 7868 8711 8804 11802 13206 15407 17422 19951 23604 26133 26412 30814 34844 39902 46221 52266 59853 60977 61628 79804 92442 104532 119706 121954 139657 182931 184884 239412 243908 279314 365862 418971 558628 618481 731724 837942 1236962 1675884 1855443 2473924 3710886 4329367 7421772 8658734 12988101 17317468 25976202 51952404