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252869697 = 3231906343
BaseRepresentation
bin11110001001001…
…11110001000001
3122121211010000100
433010213301001
51004213312242
641031513013
76160233303
oct1704476101
9577733010
10252869697
1111a813823
1270828769
1340508952
1425825973
15172ee54c
hexf127c41

252869697 has 12 divisors (see below), whose sum is σ = 377039104. Its totient is φ = 163141560.

The previous prime is 252869681. The next prime is 252869741. The reversal of 252869697 is 796968252.

It is not a de Polignac number, because 252869697 - 24 = 252869681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252869297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452893 + ... + 453450.

Almost surely, 2252869697 is an apocalyptic number.

It is an amenable number.

252869697 is a deficient number, since it is larger than the sum of its proper divisors (124169407).

252869697 is a wasteful number, since it uses less digits than its factorization.

252869697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906380 (or 906377 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 252869697 is about 15901.8771533426. The cubic root of 252869697 is about 632.3617549517.

The spelling of 252869697 in words is "two hundred fifty-two million, eight hundred sixty-nine thousand, six hundred ninety-seven".

Divisors: 1 3 9 31 93 279 906343 2719029 8157087 28096633 84289899 252869697