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20313101000 = 2353198710223
BaseRepresentation
bin10010111010110000…
…010101001011001000
31221102122200110002002
4102322300111023020
5313100123213000
613155352130132
71316243336543
oct227260251310
957378613062
1020313101000
118684241485
123b2a996948
131bb95118ba
14da9b0985a
157dd4b68d5
hex4bac152c8

20313101000 has 64 divisors (see below), whose sum is σ = 47561230080. Its totient is φ = 8120356800.

The previous prime is 20313100999. The next prime is 20313101027. The reversal of 20313101000 is 10131302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1981889 + ... + 1992111.

It is an arithmetic number, because the mean of its divisors is an integer number (743144220).

Almost surely, 220313101000 is an apocalyptic number.

20313101000 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 20313101000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23780615040).

20313101000 is an abundant number, since it is smaller than the sum of its proper divisors (27248129080).

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

20313101000 is a wasteful number, since it uses less digits than its factorization.

20313101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12231 (or 12217 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 20313101000 its reverse (10131302), we get a palindrome (20323232302).

The spelling of 20313101000 in words is "twenty billion, three hundred thirteen million, one hundred one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 1987 3974 7948 9935 10223 15896 19870 20446 39740 40892 49675 51115 79480 81784 99350 102230 198700 204460 248375 255575 397400 408920 496750 511150 993500 1022300 1277875 1987000 2044600 2555750 5111500 10223000 20313101 40626202 81252404 101565505 162504808 203131010 406262020 507827525 812524040 1015655050 2031310100 2539137625 4062620200 5078275250 10156550500 20313101000