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102803028 = 22329295411
BaseRepresentation
bin1100010000010…
…10011001010100
321011102221020120
412020022121110
5202304144103
614111231540
72355545166
oct610123124
9234387216
10102803028
1153036489
122a5185b0
13183b55c3
14d920936
15905a253
hex620a654

102803028 has 24 divisors (see below), whose sum is σ = 248146080. Its totient is φ = 33085920.

The previous prime is 102803027. The next prime is 102803039. The reversal of 102803028 is 820308201.

It is a junction number, because it is equal to n+sod(n) for n = 102802989 and 102803007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102803027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147358 + ... + 148053.

It is an arithmetic number, because the mean of its divisors is an integer number (10339420).

Almost surely, 2102803028 is an apocalyptic number.

It is an amenable number.

102803028 is an abundant number, since it is smaller than the sum of its proper divisors (145343052).

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

102803028 is a wasteful number, since it uses less digits than its factorization.

102803028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295447 (or 295445 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 102803028 is about 10139.1828073075. The cubic root of 102803028 is about 468.4558164070.

The spelling of 102803028 in words is "one hundred two million, eight hundred three thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 295411 590822 886233 1181644 1772466 3544932 8566919 17133838 25700757 34267676 51401514 102803028