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12120888 = 2331353733
BaseRepresentation
bin101110001111…
…001100111000
3211210210201210
4232033030320
511100332023
61111443120
7205011603
oct56171470
924723653
1012120888
11692966a
1240864a0
132685030
14187733a
1510e6593
hexb8f338

12120888 has 64 divisors (see below), whose sum is σ = 33294240. Its totient is φ = 3654144.

The previous prime is 12120863. The next prime is 12120919. The reversal of 12120888 is 88802121.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16170 + ... + 16902.

Almost surely, 212120888 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 12120888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16647120).

12120888 is an abundant number, since it is smaller than the sum of its proper divisors (21173352).

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

12120888 is a wasteful number, since it uses less digits than its factorization.

12120888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 12120888 is about 3481.5065704376. The cubic root of 12120888 is about 229.7090713509.

The spelling of 12120888 in words is "twelve million, one hundred twenty thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 53 78 104 106 156 159 212 312 318 424 636 689 733 1272 1378 1466 2067 2199 2756 2932 4134 4398 5512 5864 8268 8796 9529 16536 17592 19058 28587 38116 38849 57174 76232 77698 114348 116547 155396 228696 233094 310792 466188 505037 932376 1010074 1515111 2020148 3030222 4040296 6060444 12120888