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88130406 = 23713161411
BaseRepresentation
bin1010100000011…
…00001101100110
320010211111012010
411100030031212
5140030133111
612424535050
72120044650
oct520141546
9203744163
1088130406
1145824751
1225621486
1315348c90
14b9c16d0
157b0caa6
hex540c366

88130406 has 32 divisors (see below), whose sum is σ = 216937728. Its totient is φ = 23243040.

The previous prime is 88130401. The next prime is 88130437. The reversal of 88130406 is 60403188.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88130401) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 80160 + ... + 81251.

It is an arithmetic number, because the mean of its divisors is an integer number (6779304).

Almost surely, 288130406 is an apocalyptic number.

88130406 is an abundant number, since it is smaller than the sum of its proper divisors (128807322).

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

88130406 is a wasteful number, since it uses less digits than its factorization.

88130406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161436.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 88130406 is about 9387.7796096841. The cubic root of 88130406 is about 445.0156220581.

The spelling of 88130406 in words is "eighty-eight million, one hundred thirty thousand, four hundred six".

Divisors: 1 2 3 6 7 13 14 21 26 39 42 78 91 182 273 546 161411 322822 484233 968466 1129877 2098343 2259754 3389631 4196686 6295029 6779262 12590058 14688401 29376802 44065203 88130406