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30631728294050 = 25213311520185027
BaseRepresentation
bin1101111011100000000010…
…10010001010100010100010
311000110100211210221011002012
412331300001102022202202
513003332234420402200
6145052004404552522
76311032532320232
oct675600122124242
9130410753834065
1030631728294050
11983a930066574
1235287739b2742
131412737536740
1477c825407cc2
15381c05362a35
hex1bdc0148a8a2

30631728294050 has 48 divisors (see below), whose sum is σ = 63336989006592. Its totient is φ = 10945332187200.

The previous prime is 30631728294007. The next prime is 30631728294067. The reversal of 30631728294050 is 5049282713603.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a self number, because there is not a number n which added to its sum of digits gives 30631728294050.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 760072364 + ... + 760112663.

It is an arithmetic number, because the mean of its divisors is an integer number (1319520604304).

It is a 1-persistent number, because it is pandigital, but 2⋅30631728294050 = 61263456588100 is not.

Almost surely, 230631728294050 is an apocalyptic number.

30631728294050 is an abundant number, since it is smaller than the sum of its proper divisors (32705260712542).

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

30631728294050 is a wasteful number, since it uses less digits than its factorization.

30631728294050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520185083 (or 1520185078 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 30631728294050 in words is "thirty trillion, six hundred thirty-one billion, seven hundred twenty-eight million, two hundred ninety-four thousand, fifty".

Divisors: 1 2 5 10 13 25 26 31 50 62 65 130 155 310 325 403 650 775 806 1550 2015 4030 10075 20150 1520185027 3040370054 7600925135 15201850270 19762405351 38004625675 39524810702 47125735837 76009251350 94251471674 98812026755 197624053510 235628679185 471257358370 494060133775 612634565881 988120267550 1178143395925 1225269131762 2356286791850 3063172829405 6126345658810 15315864147025 30631728294050