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252696047 = 2087121081
BaseRepresentation
bin11110000111111…
…01010111101111
3122121111021210212
433003331113233
51004142233142
641024053035
76155611112
oct1703752757
9577437725
10252696047
1111a70530a
127076417b
13404778b6
14257bc579
15172b7d82
hexf0fd5ef

252696047 has 4 divisors (see below), whose sum is σ = 252819216. Its totient is φ = 252572880.

The previous prime is 252696043. The next prime is 252696049. The reversal of 252696047 is 740696252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252696047 - 22 = 252696043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252695995 and 252696013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252696043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58454 + ... + 62627.

It is an arithmetic number, because the mean of its divisors is an integer number (63204804).

Almost surely, 2252696047 is an apocalyptic number.

252696047 is a deficient number, since it is larger than the sum of its proper divisors (123169).

252696047 is a wasteful number, since it uses less digits than its factorization.

252696047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123168.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 252696047 is about 15896.4161684324. The cubic root of 252696047 is about 632.2169705487.

The spelling of 252696047 in words is "two hundred fifty-two million, six hundred ninety-six thousand, forty-seven".

Divisors: 1 2087 121081 252696047