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52831407 = 353332273
BaseRepresentation
bin1100100110001…
…0010010101111
310200102010001210
43021202102233
5102011101112
65124205503
71211026266
oct311422257
9120363053
1052831407
1127905022
1215839893
13ac3a0b5
1470335dd
154988b3c
hex32624af

52831407 has 8 divisors (see below), whose sum is σ = 71771184. Its totient is φ = 34556288.

The previous prime is 52831369. The next prime is 52831421. The reversal of 52831407 is 70413825.

52831407 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 a cyclic number.

It is not a de Polignac number, because 52831407 - 27 = 52831279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52831007) 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, 165978 + ... + 166295.

It is an arithmetic number, because the mean of its divisors is an integer number (8971398).

Almost surely, 252831407 is an apocalyptic number.

52831407 is a deficient number, since it is larger than the sum of its proper divisors (18939777).

52831407 is a wasteful number, since it uses less digits than its factorization.

52831407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332329.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 52831407 is about 7268.5216516153. The cubic root of 52831407 is about 375.2298608530.

The spelling of 52831407 in words is "fifty-two million, eight hundred thirty-one thousand, four hundred seven".

Divisors: 1 3 53 159 332273 996819 17610469 52831407