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23980128 = 2531913147
BaseRepresentation
bin101101101111…
…0100001100000
31200010022112220
41123132201200
522114331003
62213551040
7410553624
oct133364140
950108486
1023980128
1112599697
128045480
134c77c33
143283184
15218a353
hex16de860

23980128 has 48 divisors (see below), whose sum is σ = 66265920. Its totient is φ = 7572096.

The previous prime is 23980087. The next prime is 23980133. The reversal of 23980128 is 82108932.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4750 + ... + 8397.

It is an arithmetic number, because the mean of its divisors is an integer number (1380540).

Almost surely, 223980128 is an apocalyptic number.

It is an amenable number.

23980128 is an abundant number, since it is smaller than the sum of its proper divisors (42285792).

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

23980128 is a wasteful number, since it uses less digits than its factorization.

23980128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13179 (or 13171 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 23980128 is about 4896.9508880527. The cubic root of 23980128 is about 288.3702799021.

The spelling of 23980128 in words is "twenty-three million, nine hundred eighty thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 76 96 114 152 228 304 456 608 912 1824 13147 26294 39441 52588 78882 105176 157764 210352 249793 315528 420704 499586 631056 749379 999172 1262112 1498758 1998344 2997516 3996688 5995032 7993376 11990064 23980128