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52170748 = 2271863241
BaseRepresentation
bin1100011100000…
…0111111111100
310122011112210221
43013000333330
5101323430443
65102111124
71202305210
oct307007774
9118145727
1052170748
11274a3723
121557b4a4
13aa68486
146d00940
1548a7eed
hex31c0ffc

52170748 has 12 divisors (see below), whose sum is σ = 104341552. Its totient is φ = 22358880.

The previous prime is 52170733. The next prime is 52170749. The reversal of 52170748 is 84707125.

It is a happy number.

52170748 is an admirable number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52170749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 931593 + ... + 931648.

Almost surely, 252170748 is an apocalyptic number.

It is an amenable number.

52170748 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

52170748 is a wasteful number, since it uses less digits than its factorization.

52170748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863252 (or 1863250 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 52170748 is about 7222.9320916093. The cubic root of 52170748 is about 373.6592070374.

The spelling of 52170748 in words is "fifty-two million, one hundred seventy thousand, seven hundred forty-eight".

Divisors: 1 2 4 7 14 28 1863241 3726482 7452964 13042687 26085374 52170748