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260061531 = 31929157327
BaseRepresentation
bin11111000000000…
…11100101011011
3200010100111100120
433200003211123
51013033432111
641450004323
76305325612
oct1740034533
9603314316
10260061531
11123886094
12731166a3
1341b56282
1426778879
1517c70406
hexf80395b

260061531 has 16 divisors (see below), whose sum is σ = 377587200. Its totient is φ = 158584608.

The previous prime is 260061499. The next prime is 260061533. The reversal of 260061531 is 135160062.

260061531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 260061531 - 25 = 260061499 is a prime.

It is a super-2 number, since 2×2600615312 = 135263999812127922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (260061533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77011 + ... + 80316.

It is an arithmetic number, because the mean of its divisors is an integer number (23599200).

Almost surely, 2260061531 is an apocalyptic number.

260061531 is a deficient number, since it is larger than the sum of its proper divisors (117525669).

260061531 is a wasteful number, since it uses less digits than its factorization.

260061531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157378.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 260061531 is about 16126.4233790385. The cubic root of 260061531 is about 638.3007748726.

The spelling of 260061531 in words is "two hundred sixty million, sixty-one thousand, five hundred thirty-one".

Divisors: 1 3 19 29 57 87 551 1653 157327 471981 2989213 4562483 8967639 13687449 86687177 260061531