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88249813 = 1929160163
BaseRepresentation
bin1010100001010…
…01010111010101
320011001112222121
411100221113111
5140042443223
612431255541
72121053041
oct520512725
9204045877
1088249813
11458a6433
122567a5b1
131538b432
14ba13021
157b3315d
hex54295d5

88249813 has 8 divisors (see below), whose sum is σ = 96098400. Its totient is φ = 80721648.

The previous prime is 88249807. The next prime is 88249867. The reversal of 88249813 is 31894288.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-88249813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88249813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88249613) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 79531 + ... + 80632.

It is an arithmetic number, because the mean of its divisors is an integer number (12012300).

Almost surely, 288249813 is an apocalyptic number.

It is an amenable number.

88249813 is a deficient number, since it is larger than the sum of its proper divisors (7848587).

88249813 is a wasteful number, since it uses less digits than its factorization.

88249813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160211.

The product of its digits is 110592, while the sum is 43.

The square root of 88249813 is about 9394.1371610170. The cubic root of 88249813 is about 445.2165137524.

The spelling of 88249813 in words is "eighty-eight million, two hundred forty-nine thousand, eight hundred thirteen".

Divisors: 1 19 29 551 160163 3043097 4644727 88249813