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11512928 = 257103499
BaseRepresentation
bin101011111010…
…110001100000
3210122220202202
4223322301200
510421403203
61050432332
7166600250
oct53726140
923586682
1011512928
116553919
123a326a8
1325013ab
141759960
151026388
hexafac60

11512928 has 48 divisors (see below), whose sum is σ = 26208000. Its totient is φ = 4876416.

The previous prime is 11512901. The next prime is 11512933. The reversal of 11512928 is 82921511.

11512928 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×115129282 = 265095022266368, which contains 22 as substring.

11512928 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 11512928.

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, 22823 + ... + 23321.

It is an arithmetic number, because the mean of its divisors is an integer number (546000).

Almost surely, 211512928 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 11512928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13104000).

11512928 is an abundant number, since it is smaller than the sum of its proper divisors (14695072).

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

11512928 is a wasteful number, since it uses less digits than its factorization.

11512928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 611 counting only the distinct ones).

The product of its digits is 1440, while the sum is 29.

The square root of 11512928 is about 3393.0705857674. The cubic root of 11512928 is about 225.8024221462.

The spelling of 11512928 in words is "eleven million, five hundred twelve thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 103 112 206 224 412 499 721 824 998 1442 1648 1996 2884 3296 3493 3992 5768 6986 7984 11536 13972 15968 23072 27944 51397 55888 102794 111776 205588 359779 411176 719558 822352 1439116 1644704 2878232 5756464 11512928