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17312372380 = 2253943219533
BaseRepresentation
bin10000000111111001…
…011101011010011100
31122200112021122021001
4100013321131122130
5240423431404010
611541520120044
71152005510602
oct200771353234
948615248231
1017312372380
117384423676
123431a66024
13182b933834
14ba3393872
156b4d2bc3a
hex407e5d69c

17312372380 has 24 divisors (see below), whose sum is σ = 36365368032. Its totient is φ = 6923161152.

The previous prime is 17312372377. The next prime is 17312372381. The reversal of 17312372380 is 8327321371.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17312372381) 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, 30907 + ... + 188626.

It is an arithmetic number, because the mean of its divisors is an integer number (1515223668).

Almost surely, 217312372380 is an apocalyptic number.

17312372380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

17312372380 is an abundant number, since it is smaller than the sum of its proper divisors (19052995652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17312372380 is a wasteful number, since it uses less digits than its factorization.

17312372380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223485 (or 223483 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 17312372380 in words is "seventeen billion, three hundred twelve million, three hundred seventy-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 3943 7886 15772 19715 39430 78860 219533 439066 878132 1097665 2195330 4390660 865618619 1731237238 3462474476 4328093095 8656186190 17312372380