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475254261 = 32173106237
BaseRepresentation
bin11100010100111…
…100110111110101
31020010021102021200
4130110330313311
51433131114021
6115054203113
714530410636
oct3424746765
91203242250
10475254261
112242a5619
121131b3499
13775cc851
144719388d
152bacb126
hex1c53cdf5

475254261 has 12 divisors (see below), whose sum is σ = 726859692. Its totient is φ = 298198656.

The previous prime is 475254259. The next prime is 475254289. The reversal of 475254261 is 162452574.

It is a happy number.

475254261 is a `hidden beast` number, since 4 + 7 + 52 + 542 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 159516900 + 315737361 = 12630^2 + 17769^2 .

It is not a de Polignac number, because 475254261 - 21 = 475254259 is a prime.

It is a super-2 number, since 2×4752542612 = 451733225197312242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475256261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1552966 + ... + 1553271.

It is an arithmetic number, because the mean of its divisors is an integer number (60571641).

Almost surely, 2475254261 is an apocalyptic number.

It is an amenable number.

475254261 is a deficient number, since it is larger than the sum of its proper divisors (251605431).

475254261 is a wasteful number, since it uses less digits than its factorization.

475254261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3106260 (or 3106257 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 475254261 is about 21800.3270847022. The cubic root of 475254261 is about 780.3845687449.

The spelling of 475254261 in words is "four hundred seventy-five million, two hundred fifty-four thousand, two hundred sixty-one".

Divisors: 1 3 9 17 51 153 3106237 9318711 27956133 52806029 158418087 475254261