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20110687045 = 5131227135257
BaseRepresentation
bin10010101110101100…
…001011101101000101
31220220112210202022221
4102232230023231011
5312141313441140
613123321452341
71311235006441
oct225654135505
956815722287
1020110687045
11858aa5a919
123a930410b1
131b865c0927
14d8ac99821
157ca83214a
hex4aeb0bb45

20110687045 has 16 divisors (see below), whose sum is σ = 24424348608. Its totient is φ = 15895285120.

The previous prime is 20110687039. The next prime is 20110687063. The reversal of 20110687045 is 54078601102.

It is not a de Polignac number, because 20110687045 - 217 = 20110555973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20110687045.

It is a congruent number.

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, 81057 + ... + 216313.

It is an arithmetic number, because the mean of its divisors is an integer number (1526521788).

Almost surely, 220110687045 is an apocalyptic number.

It is an amenable number.

20110687045 is a deficient number, since it is larger than the sum of its proper divisors (4313661563).

20110687045 is a wasteful number, since it uses less digits than its factorization.

20110687045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135620.

The product of its (nonzero) digits is 13440, while the sum is 34.

The spelling of 20110687045 in words is "twenty billion, one hundred ten million, six hundred eighty-seven thousand, forty-five".

Divisors: 1 5 131 227 655 1135 29737 135257 148685 676285 17718667 30703339 88593335 153516695 4022137409 20110687045