Search a number
-
+
88720284 = 2237393357
BaseRepresentation
bin1010100100111…
…00001110011100
320011221110100110
411102130032130
5140203022114
612445330020
72125052502
oct522341634
9204843313
1088720284
1146097954
1225866910
13154c4613
14bad6672
157bc7759
hex549c39c

88720284 has 12 divisors (see below), whose sum is σ = 207014024. Its totient is φ = 29573424.

The previous prime is 88720283. The next prime is 88720301. The reversal of 88720284 is 48202788.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88720283) 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 3 ways as a sum of consecutive naturals, for example, 3696667 + ... + 3696690.

Almost surely, 288720284 is an apocalyptic number.

It is an amenable number.

88720284 is an abundant number, since it is smaller than the sum of its proper divisors (118293740).

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

88720284 is a wasteful number, since it uses less digits than its factorization.

88720284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7393364 (or 7393362 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 88720284 is about 9419.1445471444. The cubic root of 88720284 is about 446.0062806197.

The spelling of 88720284 in words is "eighty-eight million, seven hundred twenty thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 7393357 14786714 22180071 29573428 44360142 88720284