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51552988 = 22371632137
BaseRepresentation
bin1100010010101…
…0001011011100
310121000011101221
43010222023130
5101144143423
65040543124
71164123154
oct304521334
9117004357
1051552988
1127111583
1215321aa4
13a8b0236
146bbd764
1547d4e5d
hex312a2dc

51552988 has 24 divisors (see below), whose sum is σ = 93268112. Its totient is φ = 24914304.

The previous prime is 51552953. The next prime is 51553009. The reversal of 51552988 is 88925515.

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, 23056 + ... + 25192.

Almost surely, 251552988 is an apocalyptic number.

It is an amenable number.

51552988 is a deficient number, since it is larger than the sum of its proper divisors (41715124).

51552988 is a wasteful number, since it uses less digits than its factorization.

51552988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341 (or 2339 counting only the distinct ones).

The product of its digits is 144000, while the sum is 43.

The square root of 51552988 is about 7180.0409469585. The cubic root of 51552988 is about 372.1784995284.

The spelling of 51552988 in words is "fifty-one million, five hundred fifty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 37 74 148 163 326 652 2137 4274 6031 8548 12062 24124 79069 158138 316276 348331 696662 1393324 12888247 25776494 51552988