Search a number
-
+
23145467619912 = 23311283309795851
BaseRepresentation
bin1010100001100111110010…
…11000000010101001001000
310000221200111102201112100020
411100303321120002221020
511013203404202314122
6121120514145340440
74606130156446101
oct520637130025110
9100850442645306
1023145467619912
117413a350856a0
1227198b6337720
13cbb7ba390181
145a03649ab3a8
152a2100321c5c
hex150cf9602a48

23145467619912 has 64 divisors (see below), whose sum is σ = 63347055816960. Its totient is φ = 6988994376000.

The previous prime is 23145467619817. The next prime is 23145467619917. The reversal of 23145467619912 is 21991676454132.

It is not an unprimeable number, because it can be changed into a prime (23145467619917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154823214 + ... + 154972637.

It is an arithmetic number, because the mean of its divisors is an integer number (989797747140).

Almost surely, 223145467619912 is an apocalyptic number.

23145467619912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23145467619912 is an abundant number, since it is smaller than the sum of its proper divisors (40201588197048).

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

23145467619912 is a wasteful number, since it uses less digits than its factorization.

23145467619912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309796154 (or 309796150 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The spelling of 23145467619912 in words is "twenty-three trillion, one hundred forty-five billion, four hundred sixty-seven million, six hundred nineteen thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 44 66 88 132 264 283 566 849 1132 1698 2264 3113 3396 6226 6792 9339 12452 18678 24904 37356 74712 309795851 619591702 929387553 1239183404 1858775106 2478366808 3407754361 3717550212 6815508722 7435100424 10223263083 13631017444 20446526166 27262034888 40893052332 81786104664 87672225833 175344451666 263016677499 350688903332 526033354998 701377806664 964394484163 1052066709996 1928788968326 2104133419992 2893183452489 3857577936652 5786366904978 7715155873304 11572733809956 23145467619912