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23012831018 = 212703905803
BaseRepresentation
bin10101011011101010…
…111110111100101010
32012101210200221102202
4111123222332330222
5334112241043033
614323312500202
71443164556542
oct253352767452
965353627382
1023012831018
11983a163611
124562b4a662
132229932498
1411844ac322
158ea4e68e8
hex55babef2a

23012831018 has 8 divisors (see below), whose sum is σ = 34522002048. Its totient is φ = 11505497004.

The previous prime is 23012830993. The next prime is 23012831063. The reversal of 23012831018 is 81013821032.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 427496 + ... + 478307.

It is an arithmetic number, because the mean of its divisors is an integer number (4315250256).

Almost surely, 223012831018 is an apocalyptic number.

23012831018 is a deficient number, since it is larger than the sum of its proper divisors (11509171030).

23012831018 is a wasteful number, since it uses less digits than its factorization.

23012831018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918508.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 23012831018 in words is "twenty-three billion, twelve million, eight hundred thirty-one thousand, eighteen".

Divisors: 1 2 12703 25406 905803 1811606 11506415509 23012831018