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51120608 = 2571120747
BaseRepresentation
bin1100001100000…
…0100111100000
310120012012021212
43003000213200
5101041324413
65023405252
71160342450
oct303004740
9116165255
1051120608
1126946740
1215153828
13a78b4a6
146b09d60
15474bca8
hex30c09e0

51120608 has 48 divisors (see below), whose sum is σ = 125483904. Its totient is φ = 19916160.

The previous prime is 51120571. The next prime is 51120611. The reversal of 51120608 is 80602115.

It is a super-2 number, since 2×511206082 = 5226633124579328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7910 + ... + 12837.

It is an arithmetic number, because the mean of its divisors is an integer number (2614248).

Almost surely, 251120608 is an apocalyptic number.

It is an amenable number.

51120608 is an abundant number, since it is smaller than the sum of its proper divisors (74363296).

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

51120608 is a wasteful number, since it uses less digits than its factorization.

51120608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20775 (or 20767 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 51120608 is about 7149.8676910835. The cubic root of 51120608 is about 371.1350777015.

The spelling of 51120608 in words is "fifty-one million, one hundred twenty thousand, six hundred eight".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 77 88 112 154 176 224 308 352 616 1232 2464 20747 41494 82988 145229 165976 228217 290458 331952 456434 580916 663904 912868 1161832 1597519 1825736 2323664 3195038 3651472 4647328 6390076 7302944 12780152 25560304 51120608