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2107131534 = 2321031311351
BaseRepresentation
bin111110110011000…
…0100011010001110
312102211221101001200
41331212010122032
513303411202114
6545031050330
7103134215424
oct17546043216
95384841050
102107131534
1199146a122
124a98109a6
13277716bc1
1415dbc5114
15c4ec5409
hex7d98468e

2107131534 has 24 divisors (see below), whose sum is σ = 4566296592. Its totient is φ = 702247200.

The previous prime is 2107131511. The next prime is 2107131563. The reversal of 2107131534 is 4351317012.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2107131498 and 2107131507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179959 + ... + 191309.

It is an arithmetic number, because the mean of its divisors is an integer number (190262358).

Almost surely, 22107131534 is an apocalyptic number.

2107131534 is an abundant number, since it is smaller than the sum of its proper divisors (2459165058).

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

2107131534 is a wasteful number, since it uses less digits than its factorization.

2107131534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21672 (or 21669 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2107131534 is about 45903.5024153931. The cubic root of 2107131534 is about 1282.0271293410.

Adding to 2107131534 its reverse (4351317012), we get a palindrome (6458448546).

The spelling of 2107131534 in words is "two billion, one hundred seven million, one hundred thirty-one thousand, five hundred thirty-four".

Divisors: 1 2 3 6 9 18 10313 11351 20626 22702 30939 34053 61878 68106 92817 102159 185634 204318 117062863 234125726 351188589 702377178 1053565767 2107131534