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20010029994 = 233723751203
BaseRepresentation
bin10010101000101100…
…001101001110101010
31220122112101211211000
4102220230031032222
5311440031424434
613105324215430
71305603306603
oct225054151652
956575354730
1020010029994
11853915a779
123a6539a576
131b6b7aa046
14d7b776daa
157c1a9cb99
hex4a8b0d3aa

20010029994 has 32 divisors (see below), whose sum is σ = 44473746240. Its totient is φ = 6668958096.

The previous prime is 20010029953. The next prime is 20010029999. The reversal of 20010029994 is 49992001002.

It is not an unprimeable number, because it can be changed into a prime (20010029999) 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, 365197 + ... + 416399.

It is an arithmetic number, because the mean of its divisors is an integer number (1389804570).

Almost surely, 220010029994 is an apocalyptic number.

20010029994 is an abundant number, since it is smaller than the sum of its proper divisors (24463716246).

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

20010029994 is a wasteful number, since it uses less digits than its factorization.

20010029994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58451 (or 58445 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 20010029994 in words is "twenty billion, ten million, twenty-nine thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 7237 14474 21711 43422 51203 65133 102406 130266 153609 195399 307218 390798 460827 921654 1382481 2764962 370556111 741112222 1111668333 2223336666 3335004999 6670009998 10005014997 20010029994