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252820886 = 2162177983
BaseRepresentation
bin11110001000110…
…11110110010110
3122121201122001112
433010123312112
51004210232021
641030455022
76156641063
oct1704336626
9577648045
10252820886
1111a79008a
1270804472
13404bc676
1425811c6a
15172ded5b
hexf11bd96

252820886 has 8 divisors (see below), whose sum is σ = 379470144. Its totient is φ = 126330840.

The previous prime is 252820873. The next prime is 252820891. The reversal of 252820886 is 688028252.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35750 + ... + 42233.

It is an arithmetic number, because the mean of its divisors is an integer number (47433768).

Almost surely, 2252820886 is an apocalyptic number.

252820886 is a deficient number, since it is larger than the sum of its proper divisors (126649258).

252820886 is a wasteful number, since it uses less digits than its factorization.

252820886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79606.

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 252820886 is about 15900.3423233590. The cubic root of 252820886 is about 632.3210644351.

The spelling of 252820886 in words is "two hundred fifty-two million, eight hundred twenty thousand, eight hundred eighty-six".

Divisors: 1 2 1621 3242 77983 155966 126410443 252820886