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23173152 = 2531991213
BaseRepresentation
bin101100001100…
…1100000100000
31121121022120220
41120121200200
521413020102
62144403040
7400653132
oct130314040
947538526
1023173152
1112098372
127916480
134a54832
143113052
15207b1bc
hex1619820

23173152 has 48 divisors (see below), whose sum is σ = 61185600. Its totient is φ = 7679232.

The previous prime is 23173147. The next prime is 23173153. The reversal of 23173152 is 25137132.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (23173153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18498 + ... + 19710.

It is an arithmetic number, because the mean of its divisors is an integer number (1274700).

Almost surely, 223173152 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 23173152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30592800).

23173152 is an abundant number, since it is smaller than the sum of its proper divisors (38012448).

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

23173152 is a wasteful number, since it uses less digits than its factorization.

23173152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425 (or 1417 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 23173152 is about 4813.8500184364. The cubic root of 23173152 is about 285.0985685527.

The spelling of 23173152 in words is "twenty-three million, one hundred seventy-three thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 199 398 597 796 1194 1213 1592 2388 2426 3184 3639 4776 4852 6368 7278 9552 9704 14556 19104 19408 29112 38816 58224 116448 241387 482774 724161 965548 1448322 1931096 2896644 3862192 5793288 7724384 11586576 23173152