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20152501300 = 2252201525013
BaseRepresentation
bin10010110001001011…
…101100010000110100
31221000110111010201001
4102301023230100310
5312233020020200
613131414013044
71312253302051
oct226113542064
957013433631
1020152501300
11860161a558
123aa5047184
131b921711a9
14d92662028
157ce34176a
hex4b12ec434

20152501300 has 18 divisors (see below), whose sum is σ = 43730928038. Its totient is φ = 8061000480.

The previous prime is 20152501283. The next prime is 20152501309. The reversal of 20152501300 is 310525102.

It can be written as a sum of positive squares in 3 ways, for example, as 3623799204 + 16528702096 = 60198^2 + 128564^2 .

It is a super-2 number, since 2×201525013002 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152501309) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100762407 + ... + 100762606.

Almost surely, 220152501300 is an apocalyptic number.

20152501300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20152501300 is an abundant number, since it is smaller than the sum of its proper divisors (23578426738).

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

20152501300 is a wasteful number, since it uses less digits than its factorization.

20152501300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201525027 (or 201525020 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The spelling of 20152501300 in words is "twenty billion, one hundred fifty-two million, five hundred one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 201525013 403050026 806100052 1007625065 2015250130 4030500260 5038125325 10076250650 20152501300