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88280428 = 22197112031
BaseRepresentation
bin1010100001100…
…00110101101100
320011010002222111
411100300311230
5140044433203
612432053404
72121241225
oct520606554
9204102874
1088280428
1145917435
1225694264
131539c352
14ba2024c
157b3c26d
hex5430d6c

88280428 has 12 divisors (see below), whose sum is σ = 155276352. Its totient is φ = 43915760.

The previous prime is 88280411. The next prime is 88280453. The reversal of 88280428 is 82408288.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55228 + ... + 56803.

It is an arithmetic number, because the mean of its divisors is an integer number (12939696).

Almost surely, 288280428 is an apocalyptic number.

It is an amenable number.

88280428 is a deficient number, since it is larger than the sum of its proper divisors (66995924).

88280428 is a wasteful number, since it uses less digits than its factorization.

88280428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112232 (or 112230 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 88280428 is about 9395.7664934799. The cubic root of 88280428 is about 445.2679915865.

The spelling of 88280428 in words is "eighty-eight million, two hundred eighty thousand, four hundred twenty-eight".

Divisors: 1 2 4 197 394 788 112031 224062 448124 22070107 44140214 88280428