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28025255050 = 25213231874599
BaseRepresentation
bin11010000110011011…
…110111010010001010
32200100010110110120021
4122012123313102022
5424343431130200
620512530251054
72011330510642
oct320633672212
980303413507
1028025255050
1110981586a11
125521726a8a
132848221070
1414dc085522
15ae05a441a
hex6866f748a

28025255050 has 48 divisors (see below), whose sum is σ = 58577500800. Its totient is φ = 9897877440.

The previous prime is 28025255047. The next prime is 28025255053. The reversal of 28025255050 is 5055252082.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28025255047) and next prime (28025255053).

It is a junction number, because it is equal to n+sod(n) for n = 28025254997 and 28025255015.

It is not an unprimeable number, because it can be changed into a prime (28025255053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 922350 + ... + 952249.

It is an arithmetic number, because the mean of its divisors is an integer number (1220364600).

Almost surely, 228025255050 is an apocalyptic number.

28025255050 is an abundant number, since it is smaller than the sum of its proper divisors (30552245750).

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

28025255050 is a wasteful number, since it uses less digits than its factorization.

28025255050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874647 (or 1874642 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 28025255050 in words is "twenty-eight billion, twenty-five million, two hundred fifty-five thousand, fifty".

Divisors: 1 2 5 10 13 23 25 26 46 50 65 115 130 230 299 325 575 598 650 1150 1495 2990 7475 14950 1874599 3749198 9372995 18745990 24369787 43115777 46864975 48739574 86231554 93729950 121848935 215578885 243697870 431157770 560505101 609244675 1077894425 1121010202 1218489350 2155788850 2802525505 5605051010 14012627525 28025255050