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102828151 = 472187833
BaseRepresentation
bin1100010000100…
…00100001110111
321011111012201001
412020100201313
5202311000101
614111544131
72356011346
oct610204167
9234435631
10102828151
1153053348
122a52b047
13183c3b7a
14d929b5d
159062901
hex6210877

102828151 has 4 divisors (see below), whose sum is σ = 105016032. Its totient is φ = 100640272.

The previous prime is 102828149. The next prime is 102828163. The reversal of 102828151 is 151828201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102828151 - 21 = 102828149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102828181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093870 + ... + 1093963.

It is an arithmetic number, because the mean of its divisors is an integer number (26254008).

Almost surely, 2102828151 is an apocalyptic number.

102828151 is a deficient number, since it is larger than the sum of its proper divisors (2187881).

102828151 is an equidigital number, since it uses as much as digits as its factorization.

102828151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187880.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 102828151 is about 10140.4216381766. The cubic root of 102828151 is about 468.4939737036.

Subtracting 102828151 from its reverse (151828201), we obtain a triangular number (49000050 = T9899).

The spelling of 102828151 in words is "one hundred two million, eight hundred twenty-eight thousand, one hundred fifty-one".

Divisors: 1 47 2187833 102828151