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11617760431 = 531012837669
BaseRepresentation
bin10101101000111100…
…01111010010101111
31002222122212101020101
422310132033102233
5142243121313211
65200452531531
7560620222444
oct126436172257
932878771211
1011617760431
114a21a17402
122302920ba7
131131c01174
147c2d5b9cb
1547ee195c1
hex2b478f4af

11617760431 has 16 divisors (see below), whose sum is σ = 11997966240. Its totient is φ = 11244355200.

The previous prime is 11617760417. The next prime is 11617760447. The reversal of 11617760431 is 13406771611.

It is a cyclic number.

It is not a de Polignac number, because 11617760431 - 213 = 11617752239 is a prime.

It is a super-2 number, since 2×116177604312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11617760491) 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, 1511065 + ... + 1518733.

It is an arithmetic number, because the mean of its divisors is an integer number (749872890).

Almost surely, 211617760431 is an apocalyptic number.

11617760431 is a deficient number, since it is larger than the sum of its proper divisors (380205809).

11617760431 is a wasteful number, since it uses less digits than its factorization.

11617760431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8106.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 11617760431 in words is "eleven billion, six hundred seventeen million, seven hundred sixty thousand, four hundred thirty-one".

Divisors: 1 53 101 283 5353 7669 14999 28583 406457 774569 1514899 2170327 41052157 115027331 219203027 11617760431