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2890142465 = 57292847431
BaseRepresentation
bin1010110001000100…
…0001001100000001
321110102022110010112
42230101001030001
521404334024330
61154441441105
7131422543220
oct25421011401
97412273115
102890142465
1112534568a1
12687aa0195
133709cbc92
141d5baacb7
1511dae3795
hexac441301

2890142465 has 16 divisors (see below), whose sum is σ = 4100302080. Its totient is φ = 1913472960.

The previous prime is 2890142449. The next prime is 2890142473. The reversal of 2890142465 is 5642410982.

It is not a de Polignac number, because 2890142465 - 24 = 2890142449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1422701 + ... + 1424730.

It is an arithmetic number, because the mean of its divisors is an integer number (256268880).

Almost surely, 22890142465 is an apocalyptic number.

It is an amenable number.

2890142465 is a deficient number, since it is larger than the sum of its proper divisors (1210159615).

2890142465 is a wasteful number, since it uses less digits than its factorization.

2890142465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847472.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 2890142465 is about 53760.0452473768. The cubic root of 2890142465 is about 1424.4255347320.

The spelling of 2890142465 in words is "two billion, eight hundred ninety million, one hundred forty-two thousand, four hundred sixty-five".

Divisors: 1 5 7 29 35 145 203 1015 2847431 14237155 19932017 82575499 99660085 412877495 578028493 2890142465