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23013637212 = 2232638878221
BaseRepresentation
bin10101011011101110…
…000011110001011100
32012101212012220022210
4111123232003301130
5334112442342322
614323342040420
71443204455136
oct253356036134
965355186283
1023013637212
11983a664295
124563279110
132229b55417
14118463c056
158ea60570c
hex55bb83c5c

23013637212 has 48 divisors (see below), whose sum is σ = 53969997312. Its totient is φ = 7632500160.

The previous prime is 23013637211. The next prime is 23013637219. The reversal of 23013637212 is 21273631032.

It is a super-2 number, since 2×230136372122 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23013637212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23013637211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2795262 + ... + 2803482.

It is an arithmetic number, because the mean of its divisors is an integer number (1124374944).

Almost surely, 223013637212 is an apocalyptic number.

It is an amenable number.

23013637212 is an abundant number, since it is smaller than the sum of its proper divisors (30956360100).

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

23013637212 is a wasteful number, since it uses less digits than its factorization.

23013637212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9378 (or 9376 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

The spelling of 23013637212 in words is "twenty-three billion, thirteen million, six hundred thirty-seven thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 263 526 789 887 1052 1578 1774 2661 3156 3548 5322 8221 10644 16442 24663 32884 49326 98652 233281 466562 699843 933124 1399686 2162123 2799372 4324246 6486369 7292027 8648492 12972738 14584054 21876081 25945476 29168108 43752162 87504324 1917803101 3835606202 5753409303 7671212404 11506818606 23013637212