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20301221096 = 2313195204049
BaseRepresentation
bin10010111010000011…
…000000110011101000
31221101211022212220122
4102322003000303220
5313034103033341
613154245342412
71316040350342
oct227203006350
957354285818
1020301221096
118678567982
123b26a07a08
131bb6c12480
14da82d6292
157dc41b94b
hex4ba0c0ce8

20301221096 has 16 divisors (see below), whose sum is σ = 40992850500. Its totient is φ = 9369794304.

The previous prime is 20301221077. The next prime is 20301221111. The reversal of 20301221096 is 69012210302.

It can be written as a sum of positive squares in 2 ways, for example, as 18848544100 + 1452676996 = 137290^2 + 38114^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97601921 + ... + 97602128.

Almost surely, 220301221096 is an apocalyptic number.

20301221096 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20301221096 is an abundant number, since it is smaller than the sum of its proper divisors (20691629404).

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

20301221096 is a wasteful number, since it uses less digits than its factorization.

20301221096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195204068 (or 195204064 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 20301221096 its reverse (69012210302), we get a palindrome (89313431398).

The spelling of 20301221096 in words is "twenty billion, three hundred one million, two hundred twenty-one thousand, ninety-six".

Divisors: 1 2 4 8 13 26 52 104 195204049 390408098 780816196 1561632392 2537652637 5075305274 10150610548 20301221096