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2531312214993 = 33175514841427
BaseRepresentation
bin100100110101011101111…
…101110010001111010001
322221222202111111220011000
4210311131331302033101
5312433111411334433
65214511353412213
7350611163550102
oct44653575621721
98858674456130
102531312214993
11896583832911
1234a70340a069
1315491789acc3
148a7324dc3a9
1545ca2a3e113
hex24d5df723d1

2531312214993 has 16 divisors (see below), whose sum is σ = 3970685828160. Its totient is φ = 1588274330688.

The previous prime is 2531312214983. The next prime is 2531312215001. The reversal of 2531312214993 is 3994122131352.

2531312214993 is a `hidden beast` number, since 2 + 5 + 3 + 131 + 2 + 21 + 499 + 3 = 666.

It is not a de Polignac number, because 2531312214993 - 214 = 2531312198609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2531312214913) 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, 2757420255 + ... + 2757421172.

It is an arithmetic number, because the mean of its divisors is an integer number (248167864260).

Almost surely, 22531312214993 is an apocalyptic number.

It is an amenable number.

2531312214993 is a deficient number, since it is larger than the sum of its proper divisors (1439373613167).

2531312214993 is a wasteful number, since it uses less digits than its factorization.

2531312214993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5514841453 (or 5514841447 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The spelling of 2531312214993 in words is "two trillion, five hundred thirty-one billion, three hundred twelve million, two hundred fourteen thousand, nine hundred ninety-three".

Divisors: 1 3 9 17 27 51 153 459 5514841427 16544524281 49633572843 93752304259 148900718529 281256912777 843770738331 2531312214993