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475531201 = 3533134597
BaseRepresentation
bin11100010110000…
…000011111000001
31020010210111011201
4130112000133001
51433213444301
6115104141201
714532643225
oct3426003701
91203714151
10475531201
112244746a2
12113307801
1377698912
1447226785
152bb33201
hex1c5807c1

475531201 has 4 divisors (see below), whose sum is σ = 475669332. Its totient is φ = 475393072.

The previous prime is 475531171. The next prime is 475531213. The reversal of 475531201 is 102135574.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102135574 = 251067787.

It can be written as a sum of positive squares in 2 ways, for example, as 191102976 + 284428225 = 13824^2 + 16865^2 .

It is a cyclic number.

It is not a de Polignac number, because 475531201 - 27 = 475531073 is a prime.

It is a super-2 number, since 2×4755312012 = 452259846249004802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 475531201.

It is not an unprimeable number, because it can be changed into a prime (475531291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63766 + ... + 70831.

It is an arithmetic number, because the mean of its divisors is an integer number (118917333).

Almost surely, 2475531201 is an apocalyptic number.

It is an amenable number.

475531201 is a deficient number, since it is larger than the sum of its proper divisors (138131).

475531201 is a wasteful number, since it uses less digits than its factorization.

475531201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138130.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 475531201 is about 21806.6778992124. The cubic root of 475531201 is about 780.5361211206.

Adding to 475531201 its reverse (102135574), we get a palindrome (577666775).

The spelling of 475531201 in words is "four hundred seventy-five million, five hundred thirty-one thousand, two hundred one".

Divisors: 1 3533 134597 475531201