Search a number
-
+
108121288 = 23111228651
BaseRepresentation
bin1100111000111…
…00110011001000
321112110010112011
412130130303020
5210134340123
614421225304
72452005262
oct634346310
9245403464
10108121288
1156039140
1230262234
13195281c2
1410506b32
15975ae0d
hex671ccc8

108121288 has 16 divisors (see below), whose sum is σ = 221157360. Its totient is φ = 49146000.

The previous prime is 108121259. The next prime is 108121331. The reversal of 108121288 is 882121801.

It is a happy number.

It is a super-3 number, since 3×1081212883 (a number of 25 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 614238 + ... + 614413.

It is an arithmetic number, because the mean of its divisors is an integer number (13822335).

Almost surely, 2108121288 is an apocalyptic number.

It is an amenable number.

108121288 is an abundant number, since it is smaller than the sum of its proper divisors (113036072).

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

108121288 is a wasteful number, since it uses less digits than its factorization.

108121288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228668 (or 1228664 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 108121288 is about 10398.1386795907. The cubic root of 108121288 is about 476.3985199145.

It can be divided in two parts, 10812 and 1288, that added together give a square (12100 = 1102).

The spelling of 108121288 in words is "one hundred eight million, one hundred twenty-one thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 11 22 44 88 1228651 2457302 4914604 9829208 13515161 27030322 54060644 108121288