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51307088 = 2471726947
BaseRepresentation
bin1100001110111…
…0001001010000
310120112200002112
43003232021100
5101113311323
65031404452
71162050230
oct303561120
9116480075
1051307088
1126a63858
1215223728
13a825331
146b57cc0
154787178
hex30ee250

51307088 has 40 divisors (see below), whose sum is σ = 120295872. Its totient is φ = 20694528.

The previous prime is 51307079. The next prime is 51307093. The reversal of 51307088 is 88070315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11570 + ... + 15377.

Almost surely, 251307088 is an apocalyptic number.

It is an amenable number.

51307088 is an abundant number, since it is smaller than the sum of its proper divisors (68988784).

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

51307088 is a wasteful number, since it uses less digits than its factorization.

51307088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26979 (or 26973 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 51307088 is about 7162.8966207813. The cubic root of 51307088 is about 371.5858110245.

The spelling of 51307088 in words is "fifty-one million, three hundred seven thousand, eighty-eight".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 68 112 119 136 238 272 476 952 1904 26947 53894 107788 188629 215576 377258 431152 458099 754516 916198 1509032 1832396 3018064 3206693 3664792 6413386 7329584 12826772 25653544 51307088