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214131526461 = 323715738910529
BaseRepresentation
bin1100011101101100111…
…0111100101100111101
3202110201012020121110100
43013123032330230331
512002020132321321
6242212021431313
721320243641416
oct3073316745475
9673635217410
10214131526461
11828a3734196
123560026b539
1317266c5c558
14a514c3480d
155883dd8326
hex31db3bcb3d

214131526461 has 48 divisors (see below), whose sum is σ = 320536148400. Its totient is φ = 137643577344.

The previous prime is 214131526421. The next prime is 214131526471. The reversal of 214131526461 is 164625131412.

214131526461 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 3 + 1 + 5 + 2 + 646 + 1 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 4688003961 + 209443522500 = 68469^2 + 457650^2 .

It is not a de Polignac number, because 214131526461 - 27 = 214131526333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214131526421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20332045 + ... + 20342573.

It is an arithmetic number, because the mean of its divisors is an integer number (6677836425).

Almost surely, 2214131526461 is an apocalyptic number.

It is an amenable number.

214131526461 is a deficient number, since it is larger than the sum of its proper divisors (106404621939).

214131526461 is a wasteful number, since it uses less digits than its factorization.

214131526461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11118 (or 11115 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

Adding to 214131526461 its reverse (164625131412), we get a palindrome (378756657873).

The spelling of 214131526461 in words is "two hundred fourteen billion, one hundred thirty-one million, five hundred twenty-six thousand, four hundred sixty-one".

Divisors: 1 3 9 37 111 157 333 389 471 1167 1413 3501 5809 10529 14393 17427 31587 43179 52281 61073 94761 129537 183219 389573 549657 1168719 1653053 2259701 3506157 4095781 4959159 6779103 12287343 14877477 20337309 36862029 61162961 151543897 183488883 454631691 550466649 643037617 1363895073 1929112851 5787338553 23792391829 71377175487 214131526461