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20313302300 = 22522915594493
BaseRepresentation
bin10010111010110001…
…000110010100011100
31221102200001200012122
4102322301012110130
5313100201133200
613155400322112
71316245135454
oct227261062434
957380050178
1020313302300
118684369745
123b2aa73338
131bb9582405
14da9b5cd64
157dd506385
hex4bac4651c

20313302300 has 72 divisors (see below), whose sum is σ = 45639266400. Its totient is φ = 7838360320.

The previous prime is 20313302299. The next prime is 20313302351. The reversal of 20313302300 is 320331302.

It is a congruent number.

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, 4518854 + ... + 4523346.

It is an arithmetic number, because the mean of its divisors is an integer number (633878700).

Almost surely, 220313302300 is an apocalyptic number.

20313302300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20313302300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22819633200).

20313302300 is an abundant number, since it is smaller than the sum of its proper divisors (25325964100).

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

20313302300 is a wasteful number, since it uses less digits than its factorization.

20313302300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095 (or 6088 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 20313302300 its reverse (320331302), we get a palindrome (20633633602).

The spelling of 20313302300 in words is "twenty billion, three hundred thirteen million, three hundred two thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 725 1450 1559 2900 3118 4493 6236 7795 8986 15590 17972 22465 31180 38975 44930 45211 77950 89860 90422 112325 130297 155900 180844 224650 226055 260594 449300 452110 521188 651485 904220 1130275 1302970 2260550 2605940 3257425 4521100 6514850 7004587 13029700 14009174 28018348 35022935 70045870 140091740 175114675 203133023 350229350 406266046 700458700 812532092 1015665115 2031330230 4062660460 5078325575 10156651150 20313302300