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20144718814 = 2117136735141
BaseRepresentation
bin10010110000101110…
…000000001111011110
31220222220211202010211
4102300232000033132
5312224022000224
613130535123034
71312130166433
oct226056001736
956886752124
1020144718814
1185a8194450
123aa251347a
131b90677a7c
14d915d7b8a
157cd805894
hex4b0b803de

20144718814 has 32 divisors (see below), whose sum is σ = 33520407552. Its totient is φ = 9002868000.

The previous prime is 20144718773. The next prime is 20144718829. The reversal of 20144718814 is 41881744102.

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, 555684 + ... + 590824.

It is an arithmetic number, because the mean of its divisors is an integer number (1047512736).

Almost surely, 220144718814 is an apocalyptic number.

20144718814 is a deficient number, since it is larger than the sum of its proper divisors (13375688738).

20144718814 is a wasteful number, since it uses less digits than its factorization.

20144718814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35592.

The product of its (nonzero) digits is 57344, while the sum is 40.

The spelling of 20144718814 in words is "twenty billion, one hundred forty-four million, seven hundred eighteen thousand, eight hundred fourteen".

Divisors: 1 2 11 22 71 142 367 734 781 1562 4037 8074 26057 35141 52114 70282 286627 386551 573254 773102 2495011 4990022 12896747 25793494 27445121 54890242 141864217 283728434 915669037 1831338074 10072359407 20144718814