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52668507 = 343408283
BaseRepresentation
bin1100100011101…
…0100001011011
310200002211121110
43020322201123
5101440343012
65120511403
71206450333
oct310724133
9120084543
1052668507
11278036a1
121577b563
13abb0bc8
146dd00c3
15495573c
hex323a85b

52668507 has 8 divisors (see below), whose sum is σ = 71857984. Its totient is φ = 34295688.

The previous prime is 52668487. The next prime is 52668547. The reversal of 52668507 is 70586625.

It is a happy number.

52668507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 52668507 - 26 = 52668443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52668547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204013 + ... + 204270.

It is an arithmetic number, because the mean of its divisors is an integer number (8982248).

Almost surely, 252668507 is an apocalyptic number.

52668507 is a deficient number, since it is larger than the sum of its proper divisors (19189477).

52668507 is a wasteful number, since it uses less digits than its factorization.

52668507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408329.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 52668507 is about 7257.3071452158. The cubic root of 52668507 is about 374.8438033938.

The spelling of 52668507 in words is "fifty-two million, six hundred sixty-eight thousand, five hundred seven".

Divisors: 1 3 43 129 408283 1224849 17556169 52668507