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252612069 = 3292903587
BaseRepresentation
bin11110000111010…
…00110111100101
3122121100000121120
433003220313211
51004132041234
641022204153
76155111223
oct1703506745
9577300546
10252612069
1111a658206
1270723659
13404485c8
1425799b13
151729d049
hexf0e8de5

252612069 has 8 divisors (see below), whose sum is σ = 348430560. Its totient is φ = 162600816.

The previous prime is 252612037. The next prime is 252612071. The reversal of 252612069 is 960216252.

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

It is not a de Polignac number, because 252612069 - 25 = 252612037 is a prime.

It is a super-2 number, since 2×2526120692 = 127625714808921522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252612869) 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, 1451707 + ... + 1451880.

It is an arithmetic number, because the mean of its divisors is an integer number (43553820).

Almost surely, 2252612069 is an apocalyptic number.

252612069 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

252612069 is a deficient number, since it is larger than the sum of its proper divisors (95818491).

252612069 is a wasteful number, since it uses less digits than its factorization.

252612069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903619.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 252612069 is about 15893.7745359622. The cubic root of 252612069 is about 632.1469282985.

The spelling of 252612069 in words is "two hundred fifty-two million, six hundred twelve thousand, sixty-nine".

Divisors: 1 3 29 87 2903587 8710761 84204023 252612069