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51270192 = 2433118681
BaseRepresentation
bin1100001110010…
…1001000110000
310120110210111000
43003211020300
5101111121232
65030522000
71161534531
oct303451060
9116423430
1051270192
1126a39066
1215206300
13a8115bc
146b48688
15477b27c
hex30e5230

51270192 has 40 divisors (see below), whose sum is σ = 147165680. Its totient is φ = 17089920.

The previous prime is 51270157. The next prime is 51270199. The reversal of 51270192 is 29107215.

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

It is not an unprimeable number, because it can be changed into a prime (51270199) 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, 58909 + ... + 59772.

It is an arithmetic number, because the mean of its divisors is an integer number (3679142).

Almost surely, 251270192 is an apocalyptic number.

It is an amenable number.

51270192 is an abundant number, since it is smaller than the sum of its proper divisors (95895488).

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

51270192 is a wasteful number, since it uses less digits than its factorization.

51270192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118698 (or 118686 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 51270192 is about 7160.3206632106. The cubic root of 51270192 is about 371.4967179556.

The spelling of 51270192 in words is "fifty-one million, two hundred seventy thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 118681 237362 356043 474724 712086 949448 1068129 1424172 1898896 2136258 2848344 3204387 4272516 5696688 6408774 8545032 12817548 17090064 25635096 51270192