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52457207 = 1119324709
BaseRepresentation
bin1100100000011…
…0111011110111
310122201002202112
43020012323313
5101412112312
65112201235
71204610315
oct310067367
9118632675
1052457207
1127679970
121569921b
13ab3898a
146d770b5
154912d22
hex3206ef7

52457207 has 8 divisors (see below), whose sum is σ = 57524880. Its totient is φ = 47439360.

The previous prime is 52457173. The next prime is 52457213. The reversal of 52457207 is 70275425.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-52457207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52457267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10232 + ... + 14477.

It is an arithmetic number, because the mean of its divisors is an integer number (7190610).

Almost surely, 252457207 is an apocalyptic number.

52457207 is a deficient number, since it is larger than the sum of its proper divisors (5067673).

52457207 is a wasteful number, since it uses less digits than its factorization.

52457207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24913.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 52457207 is about 7242.7347735507. The cubic root of 52457207 is about 374.3418547806.

The spelling of 52457207 in words is "fifty-two million, four hundred fifty-seven thousand, two hundred seven".

Divisors: 1 11 193 2123 24709 271799 4768837 52457207