Search a number
-
+
88190120 = 23514914797
BaseRepresentation
bin1010100000110…
…10110010101000
320010221112002202
411100122302220
5140034040440
612430115332
72120414024
oct520326250
9203845082
1088190120
11458655a7
122564bb48
131536a205
14b9d9384
157b20615
hex541aca8

88190120 has 32 divisors (see below), whose sum is σ = 199773000. Its totient is φ = 35036928.

The previous prime is 88190111. The next prime is 88190147. The reversal of 88190120 is 2109188.

It can be written as a sum of positive squares in 4 ways, for example, as 47306884 + 40883236 = 6878^2 + 6394^2 .

It is a super-2 number, since 2×881901202 = 15554994531228800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1439 + ... + 13358.

Almost surely, 288190120 is an apocalyptic number.

It is an amenable number.

88190120 is an abundant number, since it is smaller than the sum of its proper divisors (111582880).

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

88190120 is a wasteful number, since it uses less digits than its factorization.

88190120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14957 (or 14953 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 88190120 is about 9390.9594823958. The cubic root of 88190120 is about 445.1161082374.

The spelling of 88190120 in words is "eighty-eight million, one hundred ninety thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 149 298 596 745 1192 1490 2980 5960 14797 29594 59188 73985 118376 147970 295940 591880 2204753 4409506 8819012 11023765 17638024 22047530 44095060 88190120