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11487663031 = 137312105019
BaseRepresentation
bin10101011001011011…
…11101001110110111
31002122121001202011011
422230231331032313
5142011320204111
65135524253051
7554450344645
oct125455751667
932577052134
1011487663031
114965539299
122287241187
131110c80260
147ad974195
154737bc021
hex2acb7d3b7

11487663031 has 8 divisors (see below), whose sum is σ = 12540800720. Its totient is φ = 10458735552.

The previous prime is 11487662981. The next prime is 11487663037. The reversal of 11487663031 is 13036678411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11487663031 - 29 = 11487662519 is a prime.

It is a super-2 number, since 2×114876630312 (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 (11487663037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6051561 + ... + 6053458.

It is an arithmetic number, because the mean of its divisors is an integer number (1567600090).

Almost surely, 211487663031 is an apocalyptic number.

11487663031 is a deficient number, since it is larger than the sum of its proper divisors (1053137689).

11487663031 is a wasteful number, since it uses less digits than its factorization.

11487663031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12105105.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 11487663031 in words is "eleven billion, four hundred eighty-seven million, six hundred sixty-three thousand, thirty-one".

Divisors: 1 13 73 949 12105019 157365247 883666387 11487663031