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252990352 = 2415979901
BaseRepresentation
bin11110001010001…
…01001110010000
3122122001020112001
433011011032100
51004231142402
641034243344
76161245126
oct1705051620
9578036461
10252990352
1111a89643a
1270886554
134054b844
1425857916
1517325187
hexf145390

252990352 has 20 divisors (see below), whose sum is σ = 490525276. Its totient is φ = 126403200.

The previous prime is 252990341. The next prime is 252990401. The reversal of 252990352 is 253099252.

252990352 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159365376 + 93624976 = 12624^2 + 9676^2 .

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, 20602 + ... + 30502.

Almost surely, 2252990352 is an apocalyptic number.

It is an amenable number.

252990352 is a deficient number, since it is larger than the sum of its proper divisors (237534924).

252990352 is a wasteful number, since it uses less digits than its factorization.

252990352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11506 (or 11500 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 252990352 is about 15905.6704354139. The cubic root of 252990352 is about 632.4623146164.

Subtracting 252990352 from its reverse (253099252), we obtain a square (108900 = 3302).

The spelling of 252990352 in words is "two hundred fifty-two million, nine hundred ninety thousand, three hundred fifty-two".

Divisors: 1 2 4 8 16 1597 3194 6388 9901 12776 19802 25552 39604 79208 158416 15811897 31623794 63247588 126495176 252990352