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252120703 = 909127733
BaseRepresentation
bin11110000011100…
…00111001111111
3122120102001120211
433001300321333
51004020330303
641003453251
76150663532
oct1701607177
9576361524
10252120703
1111a35201a
1270527227
1340305a63
14256aca19
151720266d
hexf070e7f

252120703 has 4 divisors (see below), whose sum is σ = 252157528. Its totient is φ = 252083880.

The previous prime is 252120683. The next prime is 252120731. The reversal of 252120703 is 307021252.

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 252120703 - 217 = 251989631 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252120763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4776 + ... + 22957.

It is an arithmetic number, because the mean of its divisors is an integer number (63039382).

Almost surely, 2252120703 is an apocalyptic number.

252120703 is a deficient number, since it is larger than the sum of its proper divisors (36825).

252120703 is an equidigital number, since it uses as much as digits as its factorization.

252120703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36824.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 252120703 is about 15878.3091984002. The cubic root of 252120703 is about 631.7367906994.

Adding to 252120703 its reverse (307021252), we get a palindrome (559141955).

The spelling of 252120703 in words is "two hundred fifty-two million, one hundred twenty thousand, seven hundred three".

Divisors: 1 9091 27733 252120703