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102803078428 = 22113227440439
BaseRepresentation
bin101111110111110001…
…0100111110100011100
3100211100112010110222021
41133233202213310130
53141020042002203
6115121014425524
710266361514551
oct1375742476434
9324315113867
10102803078428
113a664726446
1217b106622a4
139904476c2b
144d93446a28
152a1a3815bd
hex17ef8a7d1c

102803078428 has 12 divisors (see below), whose sum is σ = 181497471120. Its totient is φ = 50946658112.

The previous prime is 102803078407. The next prime is 102803078461. The reversal of 102803078428 is 824870308201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113719768 + ... + 113720671.

It is an arithmetic number, because the mean of its divisors is an integer number (15124789260).

Almost surely, 2102803078428 is an apocalyptic number.

It is an amenable number.

102803078428 is a deficient number, since it is larger than the sum of its proper divisors (78694392692).

102803078428 is a wasteful number, since it uses less digits than its factorization.

102803078428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227440556 (or 227440554 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 102803078428 in words is "one hundred two billion, eight hundred three million, seventy-eight thousand, four hundred twenty-eight".

Divisors: 1 2 4 113 226 452 227440439 454880878 909761756 25700769607 51401539214 102803078428