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52787672 = 237942637
BaseRepresentation
bin1100100101011…
…1100111011000
310200022220001222
43021113213120
5102003201142
65123231212
71210454630
oct311274730
9120286058
1052787672
1127885183
1215818508
13ac23212
1470216c0
15497abd2
hex32579d8

52787672 has 16 divisors (see below), whose sum is σ = 113116560. Its totient is φ = 22623264.

The previous prime is 52787659. The next prime is 52787717. The reversal of 52787672 is 27678725.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 471263 + ... + 471374.

It is an arithmetic number, because the mean of its divisors is an integer number (7069785).

Almost surely, 252787672 is an apocalyptic number.

It is an amenable number.

52787672 is an abundant number, since it is smaller than the sum of its proper divisors (60328888).

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

52787672 is a wasteful number, since it uses less digits than its factorization.

52787672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942650 (or 942646 counting only the distinct ones).

The product of its digits is 329280, while the sum is 44.

The square root of 52787672 is about 7265.5125077313. The cubic root of 52787672 is about 375.1262910930.

The spelling of 52787672 in words is "fifty-two million, seven hundred eighty-seven thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 28 56 942637 1885274 3770548 6598459 7541096 13196918 26393836 52787672