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28652120 = 2357102329
BaseRepresentation
bin110110101001…
…1001001011000
31222220200022122
41231103021120
524313331440
62502040412
7465352610
oct155231130
958820278
1028652120
111519a842
129719108
135c22623
143b3ba40
1527ae7b5
hex1b53258

28652120 has 32 divisors (see below), whose sum is σ = 73677600. Its totient is φ = 9823488.

The previous prime is 28652083. The next prime is 28652131. The reversal of 28652120 is 2125682.

It is a self number, because there is not a number n which added to its sum of digits gives 28652120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50885 + ... + 51444.

It is an arithmetic number, because the mean of its divisors is an integer number (2302425).

Almost surely, 228652120 is an apocalyptic number.

28652120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28652120 is an abundant number, since it is smaller than the sum of its proper divisors (45025480).

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

28652120 is a wasteful number, since it uses less digits than its factorization.

28652120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102347 (or 102343 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 28652120 is about 5352.7675084950. The cubic root of 28652120 is about 305.9982342872.

The spelling of 28652120 in words is "twenty-eight million, six hundred fifty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 102329 204658 409316 511645 716303 818632 1023290 1432606 2046580 2865212 3581515 4093160 5730424 7163030 14326060 28652120