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20014545394 = 2192181115307
BaseRepresentation
bin10010101000111101…
…011011100111110010
31220122211220020210001
4102220331123213302
5311442210423034
613110005100214
71305656554204
oct225075334762
956584806701
1020014545394
118540764208
123a669b766a
131b6c6cb38c
14d7c1d0774
157c2190a14
hex4a8f5b9f2

20014545394 has 24 divisors (see below), whose sum is σ = 31704643728. Its totient is φ = 9474720120.

The previous prime is 20014545389. The next prime is 20014545401. The reversal of 20014545394 is 49354541002.

It is a happy 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, 1299889 + ... + 1315195.

It is an arithmetic number, because the mean of its divisors is an integer number (1321026822).

Almost surely, 220014545394 is an apocalyptic number.

20014545394 is a deficient number, since it is larger than the sum of its proper divisors (11690098334).

20014545394 is a wasteful number, since it uses less digits than its factorization.

20014545394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17158 (or 17139 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 20014545394 in words is "twenty billion, fourteen million, five hundred forty-five thousand, three hundred ninety-four".

Divisors: 1 2 19 38 361 722 1811 3622 15307 30614 34409 68818 290833 581666 653771 1307542 5525827 11051654 27720977 55441954 526698563 1053397126 10007272697 20014545394