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2108970636 = 2231272934723
BaseRepresentation
bin111110110110100…
…0101011010001100
312102222101210211120
41331231011122030
513304344030021
6545134320540
7103155645303
oct17555053214
95388353746
102108970636
11992505943
124aa359150
13277c0c026
1416014343a
15c523a2c6
hex7db4568c

2108970636 has 48 divisors (see below), whose sum is σ = 4977659904. Its totient is φ = 694927296.

The previous prime is 2108970623. The next prime is 2108970653. The reversal of 2108970636 is 6360798012.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444171 + ... + 448893.

It is an arithmetic number, because the mean of its divisors is an integer number (103701248).

Almost surely, 22108970636 is an apocalyptic number.

It is an amenable number.

2108970636 is an abundant number, since it is smaller than the sum of its proper divisors (2868689268).

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

2108970636 is a wasteful number, since it uses less digits than its factorization.

2108970636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5150 (or 5148 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 2108970636 is about 45923.5303085466. The cubic root of 2108970636 is about 1282.4000048192.

The spelling of 2108970636 in words is "two billion, one hundred eight million, nine hundred seventy thousand, six hundred thirty-six".

Divisors: 1 2 3 4 6 12 127 254 293 381 508 586 762 879 1172 1524 1758 3516 4723 9446 14169 18892 28338 37211 56676 74422 111633 148844 223266 446532 599821 1199642 1383839 1799463 2399284 2767678 3598926 4151517 5535356 7197852 8303034 16606068 175747553 351495106 527242659 702990212 1054485318 2108970636