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23105120044412 = 227825182858729
BaseRepresentation
bin1010100000011100101000…
…11110010000010101111100
310000210211100112122022220002
411100032110132100111330
511012023241212410122
6121050202353013432
74603201261636460
oct520162436202574
9100724315568802
1023105120044412
1173a890aa08a7a
122711b15b54278
13cb7a5a2c3143
1459c4181a44a0
152a103d07e992
hex15039479057c

23105120044412 has 12 divisors (see below), whose sum is σ = 46210240088880. Its totient is φ = 9902194304736.

The previous prime is 23105120044403. The next prime is 23105120044417. The reversal of 23105120044412 is 21444002150132.

It is a happy number.

23105120044412 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23105120044417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412591429337 + ... + 412591429392.

It is an arithmetic number, because the mean of its divisors is an integer number (3850853340740).

Almost surely, 223105120044412 is an apocalyptic number.

It is an amenable number.

23105120044412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23105120044412 is a wasteful number, since it uses less digits than its factorization.

23105120044412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825182858740 (or 825182858738 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 23105120044412 its reverse (21444002150132), we get a palindrome (44549122194544).

The spelling of 23105120044412 in words is "twenty-three trillion, one hundred five billion, one hundred twenty million, forty-four thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 825182858729 1650365717458 3300731434916 5776280011103 11552560022206 23105120044412