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20215100152 = 2313533667471
BaseRepresentation
bin10010110100111010…
…011111001011111000
31221011211021111012001
4102310322133023320
5312400031201102
613141531430344
71313643342022
oct226472371370
957154244161
1020215100152
118633995a45
123b01bb53b4
131ba211b030
14d9aab9012
157d4aa9487
hex4b4e9f2f8

20215100152 has 32 divisors (see below), whose sum is σ = 41589132480. Its totient is φ = 9154005120.

The previous prime is 20215100117. The next prime is 20215100219. The reversal of 20215100152 is 25100151202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1828224 + ... + 1839247.

It is an arithmetic number, because the mean of its divisors is an integer number (1299660390).

Almost surely, 220215100152 is an apocalyptic number.

It is an amenable number.

20215100152 is an abundant number, since it is smaller than the sum of its proper divisors (21374032328).

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

20215100152 is a wasteful number, since it uses less digits than its factorization.

20215100152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667543 (or 3667539 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 20215100152 its reverse (25100151202), we get a palindrome (45315251354).

The spelling of 20215100152 in words is "twenty billion, two hundred fifteen million, one hundred thousand, one hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 53 104 106 212 424 689 1378 2756 5512 3667471 7334942 14669884 29339768 47677123 95354246 190708492 194375963 381416984 388751926 777503852 1555007704 2526887519 5053775038 10107550076 20215100152