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8790428 = 2217257503
BaseRepresentation
bin100001100010…
…000110011100
3121112121012102
4201202012130
54222243203
6512224232
7134501033
oct41420634
917477172
108790428
114a64419
122b3b078
131a8a14a
14124b71a
15b89888
hex86219c

8790428 has 24 divisors (see below), whose sum is σ = 16384032. Its totient is φ = 4112384.

The previous prime is 8790413. The next prime is 8790473. The reversal of 8790428 is 8240978.

It is a junction number, because it is equal to n+sod(n) for n = 8790391 and 8790400.

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, 17225 + ... + 17727.

It is an arithmetic number, because the mean of its divisors is an integer number (682668).

Almost surely, 28790428 is an apocalyptic number.

It is an amenable number.

8790428 is a deficient number, since it is larger than the sum of its proper divisors (7593604).

8790428 is a wasteful number, since it uses less digits than its factorization.

8790428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 8790428 is about 2964.8655956046. The cubic root of 8790428 is about 206.3811399849.

The spelling of 8790428 in words is "eight million, seven hundred ninety thousand, four hundred twenty-eight".

Divisors: 1 2 4 17 34 68 257 503 514 1006 1028 2012 4369 8551 8738 17102 17476 34204 129271 258542 517084 2197607 4395214 8790428