Search a number
-
+
23213355744 = 2532111145999
BaseRepresentation
bin10101100111100111…
…111011001011100000
32012220210000122122110
4111213213323023200
5340020104340434
614355234435320
71451151160665
oct254747731340
965823018573
1023213355744
119932374827
1245ba132b40
13225c341577
1411a2d89a6c
1590ce064e9
hex5679fb2e0

23213355744 has 48 divisors (see below), whose sum is σ = 61223904000. Its totient is φ = 7701106560.

The previous prime is 23213355727. The next prime is 23213355791. The reversal of 23213355744 is 44755331232.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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, 552744 + ... + 593255.

It is an arithmetic number, because the mean of its divisors is an integer number (1275498000).

Almost surely, 223213355744 is an apocalyptic number.

23213355744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23213355744 is an abundant number, since it is smaller than the sum of its proper divisors (38010548256).

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

23213355744 is a wasteful number, since it uses less digits than its factorization.

23213355744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146223 (or 1146215 counting only the distinct ones).

The product of its digits is 302400, while the sum is 39.

Adding to 23213355744 its reverse (44755331232), we get a palindrome (67968686976).

The spelling of 23213355744 in words is "twenty-three billion, two hundred thirteen million, three hundred fifty-five thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 211 422 633 844 1266 1688 2532 3376 5064 6752 10128 20256 1145999 2291998 3437997 4583996 6875994 9167992 13751988 18335984 27503976 36671968 55007952 110015904 241805789 483611578 725417367 967223156 1450834734 1934446312 2901669468 3868892624 5803338936 7737785248 11606677872 23213355744