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253668054 = 2342278009
BaseRepresentation
bin11110001111010…
…10101011010110
3122200022200011010
433013222223112
51004414334204
641100553050
76200100003
oct1707525326
9580280133
10253668054
11120209622
1270b52786
1340728153
14259928aa
151740ad89
hexf1eaad6

253668054 has 8 divisors (see below), whose sum is σ = 507336120. Its totient is φ = 84556016.

The previous prime is 253668053. The next prime is 253668059. The reversal of 253668054 is 450866352.

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

253668054 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253668053) 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, 21138999 + ... + 21139010.

It is an arithmetic number, because the mean of its divisors is an integer number (63417015).

Almost surely, 2253668054 is an apocalyptic number.

253668054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253668054 is a wasteful number, since it uses less digits than its factorization.

253668054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42278014.

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 253668054 is about 15926.9599735794. The cubic root of 253668054 is about 633.0265506509.

The spelling of 253668054 in words is "two hundred fifty-three million, six hundred sixty-eight thousand, fifty-four".

Divisors: 1 2 3 6 42278009 84556018 126834027 253668054