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23423120144 = 2423353180311
BaseRepresentation
bin10101110100001000…
…000111001100010000
32020110101201210022022
4111310020013030100
5340432304321034
614432130431012
71456306144004
oct256410071420
966411653268
1023423120144
119a2a816936
124658432468
132293937108
1411c2b90704
1592153db2e
hex574207310

23423120144 has 40 divisors (see below), whose sum is σ = 47489853312. Its totient is φ = 11170565120.

The previous prime is 23423120141. The next prime is 23423120179. The reversal of 23423120144 is 44102132432.

It is not an unprimeable number, because it can be changed into a prime (23423120141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39749 + ... + 220059.

Almost surely, 223423120144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23423120144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23744926656).

23423120144 is an abundant number, since it is smaller than the sum of its proper divisors (24066733168).

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

23423120144 is a wasteful number, since it uses less digits than its factorization.

23423120144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180695 (or 180689 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 23423120144 its reverse (44102132432), we get a palindrome (67525252576).

The spelling of 23423120144 in words is "twenty-three billion, four hundred twenty-three million, one hundred twenty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 23 46 92 184 353 368 706 1412 2824 5648 8119 16238 32476 64952 129904 180311 360622 721244 1442488 2884976 4147153 8294306 16588612 33177224 63649783 66354448 127299566 254599132 509198264 1018396528 1463945009 2927890018 5855780036 11711560072 23423120144