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252659769 = 3127663149
BaseRepresentation
bin11110000111101…
…00100000111001
3122121102110001020
433003310200321
51004140103034
641023213053
76155400255
oct1703644071
9577373036
10252659769
1111a69002a
1270747189
134046422b
14257ad265
15172ac249
hexf0f4839

252659769 has 8 divisors (see below), whose sum is σ = 339532800. Its totient is φ = 167113296.

The previous prime is 252659767. The next prime is 252659783. The reversal of 252659769 is 967956252.

252659769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252659769 - 21 = 252659767 is a prime.

It is a super-2 number, since 2×2526597692 = 127673917742266722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252659767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331194 + ... + 331955.

It is an arithmetic number, because the mean of its divisors is an integer number (42441600).

Almost surely, 2252659769 is an apocalyptic number.

It is an amenable number.

252659769 is a deficient number, since it is larger than the sum of its proper divisors (86873031).

252659769 is a wasteful number, since it uses less digits than its factorization.

252659769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663279.

The product of its digits is 2041200, while the sum is 51.

The square root of 252659769 is about 15895.2750526690. The cubic root of 252659769 is about 632.1867146144.

The spelling of 252659769 in words is "two hundred fifty-two million, six hundred fifty-nine thousand, seven hundred sixty-nine".

Divisors: 1 3 127 381 663149 1989447 84219923 252659769