Search a number
-
+
128051652 = 22364716493
BaseRepresentation
bin1111010000111…
…10100111000100
322220221200211210
413220132213010
5230240123102
620412331420
73113264301
oct750364704
9286850753
10128051652
1166311113
1236a73b70
13206b5a11
14130140a8
15b39636c
hex7a1e9c4

128051652 has 24 divisors (see below), whose sum is σ = 299267136. Its totient is φ = 42615328.

The previous prime is 128051629. The next prime is 128051663. The reversal of 128051652 is 256150821.

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, 483 + ... + 16010.

It is an arithmetic number, because the mean of its divisors is an integer number (12469464).

Almost surely, 2128051652 is an apocalyptic number.

128051652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128051652 is an abundant number, since it is smaller than the sum of its proper divisors (171215484).

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

128051652 is a wasteful number, since it uses less digits than its factorization.

128051652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17147 (or 17145 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 128051652 is about 11315.9909862106. The cubic root of 128051652 is about 504.0361998438.

The spelling of 128051652 in words is "one hundred twenty-eight million, fifty-one thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 647 1294 1941 2588 3882 7764 16493 32986 49479 65972 98958 197916 10670971 21341942 32012913 42683884 64025826 128051652