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52070292 = 22321446397
BaseRepresentation
bin1100011010100…
…0011110010100
310121222110000100
43012220132110
5101312222132
65100014100
71201406301
oct306503624
9117873010
1052070292
11274351aa
1215531330
13aa31831
146cb60a8
15488837c
hex31a8794

52070292 has 18 divisors (see below), whose sum is σ = 131622218. Its totient is φ = 17356752.

The previous prime is 52070267. The next prime is 52070309. The reversal of 52070292 is 29207025.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49617936 + 2452356 = 7044^2 + 1566^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×520702922 = 5422630617930528, 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 5 ways as a sum of consecutive naturals, for example, 723163 + ... + 723234.

Almost surely, 252070292 is an apocalyptic number.

It is an amenable number.

52070292 is an abundant number, since it is smaller than the sum of its proper divisors (79551926).

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

52070292 is a wasteful number, since it uses less digits than its factorization.

52070292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446407 (or 1446402 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 52070292 is about 7215.9747782264. The cubic root of 52070292 is about 373.4192230815.

The spelling of 52070292 in words is "fifty-two million, seventy thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 1446397 2892794 4339191 5785588 8678382 13017573 17356764 26035146 52070292