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15230144512 = 21211338027
BaseRepresentation
bin11100010111100100…
…11001000000000000
31110022102012111121101
432023302121000000
5222142404111022
610555134504144
71046263043452
oct161362310000
943272174541
1015230144512
116506023aa0
122b50665054
13158942903b
14a46a122d2
155e2125627
hex38bc99000

15230144512 has 52 divisors (see below), whose sum is σ = 33225448176. Its totient is φ = 6922772480.

The previous prime is 15230144477. The next prime is 15230144519. The reversal of 15230144512 is 21544103251.

It is not an unprimeable number, because it can be changed into a prime (15230144519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123958 + ... + 214069.

Almost surely, 215230144512 is an apocalyptic number.

It is an amenable number.

15230144512 is an abundant number, since it is smaller than the sum of its proper divisors (17995303664).

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

15230144512 is an equidigital number, since it uses as much as digits as its factorization.

15230144512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338062 (or 338040 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 15230144512 its reverse (21544103251), we get a palindrome (36774247763).

The spelling of 15230144512 in words is "fifteen billion, two hundred thirty million, one hundred forty-four thousand, five hundred twelve".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 256 352 512 704 1024 1408 2048 2816 4096 5632 11264 22528 45056 338027 676054 1352108 2704216 3718297 5408432 7436594 10816864 14873188 21633728 29746376 43267456 59492752 86534912 118985504 173069824 237971008 346139648 475942016 692279296 951884032 1384558592 1903768064 3807536128 7615072256 15230144512