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20002709901 = 3103281230369
BaseRepresentation
bin10010101000010000…
…010010000110001101
31220122000121221112110
4102220100102012031
5311431143204101
613104503254233
71305454141326
oct225020220615
956560557473
1020002709901
118535010009
123a62a4a379
131b6a116225
14d7a7cd44d
157c1103cd6
hex4a841218d

20002709901 has 16 divisors (see below), whose sum is σ = 27025165440. Its totient is φ = 13158620160.

The previous prime is 20002709869. The next prime is 20002709929. The reversal of 20002709901 is 10990720002.

It is not a de Polignac number, because 20002709901 - 25 = 20002709869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002709941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28356 + ... + 202013.

It is an arithmetic number, because the mean of its divisors is an integer number (1689072840).

Almost surely, 220002709901 is an apocalyptic number.

It is an amenable number.

20002709901 is a deficient number, since it is larger than the sum of its proper divisors (7022455539).

20002709901 is a wasteful number, since it uses less digits than its factorization.

20002709901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230756.

The product of its (nonzero) digits is 2268, while the sum is 30.

The spelling of 20002709901 in words is "twenty billion, two million, seven hundred nine thousand, nine hundred one".

Divisors: 1 3 103 281 309 843 28943 86829 230369 691107 23728007 64733689 71184021 194201067 6667569967 20002709901