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20207571104 = 257233922277
BaseRepresentation
bin10010110100011101…
…110001000010100000
31221011022002222021102
4102310131301002200
5312341114233404
613141102213532
71313522343320
oct226435610240
957138088242
1020207571104
11862a713296
123abb5842a8
131ba06b3086
14d99ab9280
157d40bd71e
hex4b47710a0

20207571104 has 48 divisors (see below), whose sum is σ = 47443874688. Its totient is φ = 8283846912.

The previous prime is 20207571047. The next prime is 20207571107. The reversal of 20207571104 is 40117570202.

It is not an unprimeable number, because it can be changed into a prime (20207571107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1955987 + ... + 1966290.

It is an arithmetic number, because the mean of its divisors is an integer number (988414056).

Almost surely, 220207571104 is an apocalyptic number.

It is an amenable number.

20207571104 is an abundant number, since it is smaller than the sum of its proper divisors (27236303584).

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

20207571104 is a wasteful number, since it uses less digits than its factorization.

20207571104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922317 (or 3922309 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The spelling of 20207571104 in words is "twenty billion, two hundred seven million, five hundred seventy-one thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 23 28 32 46 56 92 112 161 184 224 322 368 644 736 1288 2576 5152 3922277 7844554 15689108 27455939 31378216 54911878 62756432 90212371 109823756 125512864 180424742 219647512 360849484 439295024 631486597 721698968 878590048 1262973194 1443397936 2525946388 2886795872 5051892776 10103785552 20207571104