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15230053550 = 252319825841
BaseRepresentation
bin11100010111100100…
…00010110010101110
31110022102000212211102
432023302002302232
5222142343203200
610555132523102
71046262214325
oct161362026256
943272025742
1015230053550
116505a71718
122b50620492
1315893c680a
14a469cb0bc
155e21086d5
hex38bc82cae

15230053550 has 24 divisors (see below), whose sum is σ = 29241705792. Its totient is φ = 5895504000.

The previous prime is 15230053547. The next prime is 15230053567. The reversal of 15230053550 is 5535003251.

15230053550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×152300535502 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4911371 + ... + 4914470.

It is an arithmetic number, because the mean of its divisors is an integer number (1218404408).

Almost surely, 215230053550 is an apocalyptic number.

15230053550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15230053550 is a deficient number, since it is larger than the sum of its proper divisors (14011652242).

15230053550 is a wasteful number, since it uses less digits than its factorization.

15230053550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9825884 (or 9825879 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The spelling of 15230053550 in words is "fifteen billion, two hundred thirty million, fifty-three thousand, five hundred fifty".

Divisors: 1 2 5 10 25 31 50 62 155 310 775 1550 9825841 19651682 49129205 98258410 245646025 304601071 491292050 609202142 1523005355 3046010710 7615026775 15230053550