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23881152 = 263294289
BaseRepresentation
bin101101100011…
…0010111000000
31122221021210010
41123012113000
522103144102
62211504520
7406662231
oct133062700
948837703
1023881152
1112531299
127bb8140
134c41b79
143259088
15216ad6c
hex16c65c0

23881152 has 56 divisors (see below), whose sum is σ = 65379600. Its totient is φ = 7684096.

The previous prime is 23881139. The next prime is 23881159. The reversal of 23881152 is 25118832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23881159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3424 + ... + 7712.

Almost surely, 223881152 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 23881152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32689800).

23881152 is an abundant number, since it is smaller than the sum of its proper divisors (41498448).

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

23881152 is a wasteful number, since it uses less digits than its factorization.

23881152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333 (or 4323 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 23881152 is about 4886.8345582800. The cubic root of 23881152 is about 287.9729912944.

Adding to 23881152 its reverse (25118832), we get a palindrome (48999984).

The spelling of 23881152 in words is "twenty-three million, eight hundred eighty-one thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 29 32 48 58 64 87 96 116 174 192 232 348 464 696 928 1392 1856 2784 4289 5568 8578 12867 17156 25734 34312 51468 68624 102936 124381 137248 205872 248762 274496 373143 411744 497524 746286 823488 995048 1492572 1990096 2985144 3980192 5970288 7960384 11940576 23881152