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102315991741 = 293409853793
BaseRepresentation
bin101111101001010000…
…0100010001010111101
3100210002120120220122121
41133102200202022331
53134020343213431
6115000414442541
710251325403005
oct1372240421275
9323076526577
10102315991741
113a434789a67
12179b5503451
139857593762
144d48893005
1529dc719611
hex17d28222bd

102315991741 has 8 divisors (see below), whose sum is σ = 102916328760. Its totient is φ = 101717363712.

The previous prime is 102315991727. The next prime is 102315991747. The reversal of 102315991741 is 147199513201.

It can be written as a sum of positive squares in 4 ways, for example, as 62417527225 + 39898464516 = 249835^2 + 199746^2 .

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 102315991741 - 221 = 102313894589 is a prime.

It is a super-2 number, since 2×1023159917412 (a number of 23 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 (102315991747) 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, 307060 + ... + 546733.

It is an arithmetic number, because the mean of its divisors is an integer number (12864541095).

Almost surely, 2102315991741 is an apocalyptic number.

It is an amenable number.

102315991741 is a deficient number, since it is larger than the sum of its proper divisors (600337019).

102315991741 is an equidigital number, since it uses as much as digits as its factorization.

102315991741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854495.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 102315991741 in words is "one hundred two billion, three hundred fifteen million, nine hundred ninety-one thousand, seven hundred forty-one".

Divisors: 1 293 409 119837 853793 250161349 349201337 102315991741