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51712672 = 25111071373
BaseRepresentation
bin1100010101000…
…1001010100000
310121022021110011
43011101022200
5101214301142
65044214304
71165356544
oct305211240
9117267404
1051712672
1127210550
121539a394
13a937b1b
146c21a24
154817417
hex31512a0

51712672 has 48 divisors (see below), whose sum is σ = 112184352. Its totient is φ = 23269120.

The previous prime is 51712667. The next prime is 51712679. The reversal of 51712672 is 27621715.

It is not an unprimeable number, because it can be changed into a prime (51712679) 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, 36978 + ... + 38350.

It is an arithmetic number, because the mean of its divisors is an integer number (2337174).

Almost surely, 251712672 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 51712672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56092176).

51712672 is an abundant number, since it is smaller than the sum of its proper divisors (60471680).

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

51712672 is a wasteful number, since it uses less digits than its factorization.

51712672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501 (or 1493 counting only the distinct ones).

The product of its digits is 5880, while the sum is 31.

The square root of 51712672 is about 7191.1523415931. The cubic root of 51712672 is about 372.5623744325.

The spelling of 51712672 in words is "fifty-one million, seven hundred twelve thousand, six hundred seventy-two".

Divisors: 1 2 4 8 11 16 22 32 44 88 107 176 214 352 428 856 1177 1373 1712 2354 2746 3424 4708 5492 9416 10984 15103 18832 21968 30206 37664 43936 60412 120824 146911 241648 293822 483296 587644 1175288 1616021 2350576 3232042 4701152 6464084 12928168 25856336 51712672