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20054376400 = 2452172949173
BaseRepresentation
bin10010101011010101…
…010111111111010000
31220202121211212122111
4102223111113333100
5312032410021100
613113550515104
71306652246452
oct225325277720
956677755574
1020054376400
1185611998a3
123a78205a94
131b77a36016
14d835dc2d2
157c590c6ba
hex4ab557fd0

20054376400 has 60 divisors (see below), whose sum is σ = 51014811852. Its totient is φ = 7549880320.

The previous prime is 20054376347. The next prime is 20054376403. The reversal of 20054376400 is 467345002.

It can be written as a sum of positive squares in 6 ways, for example, as 204947856 + 19849428544 = 14316^2 + 140888^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054376403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1467787 + ... + 1481386.

Almost surely, 220054376400 is an apocalyptic number.

20054376400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20054376400 is an abundant number, since it is smaller than the sum of its proper divisors (30960435452).

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

20054376400 is a wasteful number, since it uses less digits than its factorization.

20054376400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949208 (or 2949197 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The spelling of 20054376400 in words is "twenty billion, fifty-four million, three hundred seventy-six thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 17 20 25 34 40 50 68 80 85 100 136 170 200 272 340 400 425 680 850 1360 1700 3400 6800 2949173 5898346 11796692 14745865 23593384 29491730 47186768 50135941 58983460 73729325 100271882 117966920 147458650 200543764 235933840 250679705 294917300 401087528 501359410 589834600 802175056 1002718820 1179669200 1253398525 2005437640 2506797050 4010875280 5013594100 10027188200 20054376400