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87079228 = 22297197109
BaseRepresentation
bin1010011000010…
…11100100111100
320001212002020121
411030023210330
5134243013403
612350224324
72105106205
oct514134474
9201762217
1087079228
1145176a05
12251b50a4
131506b692
14b7ca5ac
1579a13bd
hex530b93c

87079228 has 48 divisors (see below), whose sum is σ = 162993600. Its totient is φ = 40642560.

The previous prime is 87079207. The next prime is 87079229. The reversal of 87079228 is 82297078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87079229) 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 15 ways as a sum of consecutive naturals, for example, 798838 + ... + 798946.

It is an arithmetic number, because the mean of its divisors is an integer number (3395700).

Almost surely, 287079228 is an apocalyptic number.

It is an amenable number.

87079228 is a deficient number, since it is larger than the sum of its proper divisors (75914372).

87079228 is a wasteful number, since it uses less digits than its factorization.

87079228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 87079228 is about 9331.6251532088. The cubic root of 87079228 is about 443.2392282719.

The spelling of 87079228 in words is "eighty-seven million, seventy-nine thousand, two hundred twenty-eight".

Divisors: 1 2 4 29 58 71 97 109 116 142 194 218 284 388 436 2059 2813 3161 4118 5626 6322 6887 7739 8236 10573 11252 12644 13774 15478 21146 27548 30956 42292 199723 224431 306617 399446 448862 613234 750683 798892 897724 1226468 1501366 3002732 21769807 43539614 87079228