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102828144 = 2432142253
BaseRepresentation
bin1100010000100…
…00100001110000
321011111012200210
412020100201300
5202311000034
614111544120
72356011336
oct610204160
9234435623
10102828144
1153053341
122a52b040
13183c3b73
14d929b56
1590628e9
hex6210870

102828144 has 20 divisors (see below), whose sum is σ = 265639496. Its totient is φ = 34276032.

The previous prime is 102828139. The next prime is 102828149. The reversal of 102828144 is 441828201.

It is an interprime number because it is at equal distance from previous prime (102828139) and next prime (102828149).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102828149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071079 + ... + 1071174.

Almost surely, 2102828144 is an apocalyptic number.

It is an amenable number.

102828144 is an abundant number, since it is smaller than the sum of its proper divisors (162811352).

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

102828144 is a wasteful number, since it uses less digits than its factorization.

102828144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142264 (or 2142258 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 102828144 is about 10140.4212930233. The cubic root of 102828144 is about 468.4939630728.

The spelling of 102828144 in words is "one hundred two million, eight hundred twenty-eight thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 2142253 4284506 6426759 8569012 12853518 17138024 25707036 34276048 51414072 102828144