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475086261 = 31312181699
BaseRepresentation
bin11100010100010…
…011110110110101
31020002221212211110
4130110103312311
51433110230021
6115050425233
714526111066
oct3424236665
91202855743
10475086261
112241a0381
12113132219
1377571240
144714c56d
152ba96476
hex1c513db5

475086261 has 8 divisors (see below), whose sum is σ = 682175200. Its totient is φ = 292360752.

The previous prime is 475086251. The next prime is 475086289. The reversal of 475086261 is 162680574.

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

It is not a de Polignac number, because 475086261 - 211 = 475084213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 12181699 = 475086261 / (4 + 7 + 5 + 0 + 8 + 6 + 2 + 6 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475086251) 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, 6090811 + ... + 6090888.

It is an arithmetic number, because the mean of its divisors is an integer number (85271900).

Almost surely, 2475086261 is an apocalyptic number.

It is an amenable number.

475086261 is a deficient number, since it is larger than the sum of its proper divisors (207088939).

475086261 is a wasteful number, since it uses less digits than its factorization.

475086261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12181715.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 475086261 is about 21796.4735909275. The cubic root of 475086261 is about 780.2926038961.

The spelling of 475086261 in words is "four hundred seventy-five million, eighty-six thousand, two hundred sixty-one".

Divisors: 1 3 13 39 12181699 36545097 158362087 475086261