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23748490488 = 2331999152553
BaseRepresentation
bin10110000111100001…
…010011010011111000
32021022001222022111210
4112013201103103320
5342114103143423
614524312323120
71500336560412
oct260741232370
967261868453
1023748490488
11a087449448
1247293a34a0
132316178848
1412140899b2
1593edaeb93
hex5878534f8

23748490488 has 64 divisors (see below), whose sum is σ = 62560281600. Its totient is φ = 7491813120.

The previous prime is 23748490483. The next prime is 23748490499. The reversal of 23748490488 is 88409484732.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23748490483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425620 + ... + 478172.

It is an arithmetic number, because the mean of its divisors is an integer number (977504400).

Almost surely, 223748490488 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 23748490488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31280140800).

23748490488 is an abundant number, since it is smaller than the sum of its proper divisors (38811791112).

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

23748490488 is a wasteful number, since it uses less digits than its factorization.

23748490488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53572 (or 53568 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 23748490488 in words is "twenty-three billion, seven hundred forty-eight million, four hundred ninety thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 991 1982 2973 3964 5946 7928 11892 18829 23784 37658 52553 56487 75316 105106 112974 150632 157659 210212 225948 315318 420424 451896 630636 998507 1261272 1997014 2995521 3994028 5991042 7988056 11982084 23964168 52080023 104160046 156240069 208320092 312480138 416640184 624960276 989520437 1249920552 1979040874 2968561311 3958081748 5937122622 7916163496 11874245244 23748490488