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28132633028 = 22711071516131
BaseRepresentation
bin11010001100110101…
…011110100111000100
32200121121111211110102
4122030311132213010
5430103423224103
620531323543232
72014103302163
oct321465364704
980547454412
1028132633028
1110a27157645
12555168ab18
132864548b26
14150c4373da
15ae9c14e88
hex68cd5e9c4

28132633028 has 48 divisors (see below), whose sum is σ = 50734107648. Its totient is φ = 13645380000.

The previous prime is 28132633003. The next prime is 28132633031. The reversal of 28132633028 is 82033623182.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 28132632982 and 28132633000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4585523 + ... + 4591653.

It is an arithmetic number, because the mean of its divisors is an integer number (1056960576).

Almost surely, 228132633028 is an apocalyptic number.

It is an amenable number.

28132633028 is a deficient number, since it is larger than the sum of its proper divisors (22601474620).

28132633028 is a wasteful number, since it uses less digits than its factorization.

28132633028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6464 (or 6462 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 28132633028 in words is "twenty-eight billion, one hundred thirty-two million, six hundred thirty-three thousand, twenty-eight".

Divisors: 1 2 4 71 107 142 151 214 284 302 428 604 6131 7597 10721 12262 15194 16157 21442 24524 30388 32314 42884 64628 435301 656017 870602 925781 1147147 1312034 1741204 1851562 2294294 2624068 3703124 4588588 46577207 65730451 93154414 99058567 131460902 186308828 198117134 262921804 396234268 7033158257 14066316514 28132633028