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52087072 = 258918289
BaseRepresentation
bin1100011010110…
…0100100100000
310122000022000211
43012230210200
5101313241242
65100223504
71201506232
oct306544440
9118008024
1052087072
1127446874
121553ab94
13aa3936b
146cbc252
15488d317
hex31ac920

52087072 has 24 divisors (see below), whose sum is σ = 103704300. Its totient is φ = 25749504.

The previous prime is 52087069. The next prime is 52087081. The reversal of 52087072 is 27078025.

It can be written as a sum of positive squares in 2 ways, for example, as 50637456 + 1449616 = 7116^2 + 1204^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6297 + ... + 11992.

Almost surely, 252087072 is an apocalyptic number.

It is an amenable number.

52087072 is a deficient number, since it is larger than the sum of its proper divisors (51617228).

52087072 is a wasteful number, since it uses less digits than its factorization.

52087072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18388 (or 18380 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 52087072 is about 7217.1373826469. The cubic root of 52087072 is about 373.4593310545.

The spelling of 52087072 in words is "fifty-two million, eighty-seven thousand, seventy-two".

Divisors: 1 2 4 8 16 32 89 178 356 712 1424 2848 18289 36578 73156 146312 292624 585248 1627721 3255442 6510884 13021768 26043536 52087072