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108428886 = 23231434519
BaseRepresentation
bin1100111011001…
…11111001010110
321120000202110200
412131213321112
5210224211021
614432001330
72454426126
oct635477126
9246022420
10108428886
1156229255
1230390246
1319605207
1410586c86
1597bc126
hex6767e56

108428886 has 48 divisors (see below), whose sum is σ = 248202240. Its totient is φ = 34156080.

The previous prime is 108428869. The next prime is 108428911. The reversal of 108428886 is 688824801.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21735 + ... + 26253.

It is an arithmetic number, because the mean of its divisors is an integer number (5170880).

Almost surely, 2108428886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108428886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124101120).

108428886 is an abundant number, since it is smaller than the sum of its proper divisors (139773354).

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

108428886 is a wasteful number, since it uses less digits than its factorization.

108428886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601 (or 4598 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 108428886 is about 10412.9191872404. The cubic root of 108428886 is about 476.8498663885.

The spelling of 108428886 in words is "one hundred eight million, four hundred twenty-eight thousand, eight hundred eighty-six".

Divisors: 1 2 3 6 9 18 31 43 62 86 93 129 186 258 279 387 558 774 1333 2666 3999 4519 7998 9038 11997 13557 23994 27114 40671 81342 140089 194317 280178 388634 420267 582951 840534 1165902 1260801 1748853 2521602 3497706 6023827 12047654 18071481 36142962 54214443 108428886