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20001310002 = 23223371305739
BaseRepresentation
bin10010101000001010…
…111100010100110010
31220121220222211020100
4102220022330110302
5311430313410002
613104413253230
71305436221102
oct225012742462
956556884210
1020001310002
118534244273
123a62494216
131b69a45c9b
14d7a547202
157c0e2911c
hex4a82bc532

20001310002 has 48 divisors (see below), whose sum is σ = 46442560320. Its totient is φ = 6204866976.

The previous prime is 20001309973. The next prime is 20001310079.

It is a happy number.

20001310002 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×200013100022 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 637552 + ... + 668187.

It is an arithmetic number, because the mean of its divisors is an integer number (967553340).

Almost surely, 220001310002 is an apocalyptic number.

20001310002 is an abundant number, since it is smaller than the sum of its proper divisors (26441250318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001310002 is a wasteful number, since it uses less digits than its factorization.

20001310002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305807 (or 1305804 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The spelling of 20001310002 in words is "twenty billion, one million, three hundred ten thousand, two".

Divisors: 1 2 3 6 9 18 23 37 46 69 74 111 138 207 222 333 414 666 851 1702 2553 5106 7659 15318 1305739 2611478 3917217 7834434 11751651 23503302 30031997 48312343 60063994 90095991 96624686 144937029 180191982 270287973 289874058 434811087 540575946 869622174 1111183889 2222367778 3333551667 6667103334 10000655001 20001310002