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30198281641770 = 23511147137621937
BaseRepresentation
bin1101101110111000101011…
…10110011001111100101010
310221220221001011120210122010
412313130111312121330222
512424232040100014040
6144120522110540350
76234516366500364
oct667342566317452
9127827034523563
1030198281641770
1196930237a0290
1234787675076b6
1313b08bb754ab8
14765867167d34
153757d746ee80
hex1b7715d99f2a

30198281641770 has 64 divisors (see below), whose sum is σ = 79065256415616. Its totient is φ = 7320734023680.

The previous prime is 30198281641769. The next prime is 30198281641771. The reversal of 30198281641770 is 7714618289103.

It is an interprime number because it is at equal distance from previous prime (30198281641769) and next prime (30198281641771).

It is a self number, because there is not a number n which added to its sum of digits gives 30198281641770.

It is not an unprimeable number, because it can be changed into a prime (30198281641771) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48244242 + ... + 48866178.

It is an arithmetic number, because the mean of its divisors is an integer number (1235394631494).

Almost surely, 230198281641770 is an apocalyptic number.

30198281641770 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30198281641770 is an abundant number, since it is smaller than the sum of its proper divisors (48866974773846).

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

30198281641770 is a wasteful number, since it uses less digits than its factorization.

30198281641770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769095.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 30198281641770 in words is "thirty trillion, one hundred ninety-eight billion, two hundred eighty-one million, six hundred forty-one thousand, seven hundred seventy".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 147137 294274 441411 621937 735685 882822 1243874 1471370 1618507 1865811 2207055 3109685 3237014 3731622 4414110 4855521 6219370 6841307 8092535 9329055 9711042 13682614 16185070 18658110 20523921 24277605 34206535 41047842 48555210 68413070 102619605 205239210 91509944369 183019888738 274529833107 457549721845 549059666214 915099443690 1006609388059 1372649165535 2013218776118 2745298331070 3019828164177 5033046940295 6039656328354 10066093880590 15099140820885 30198281641770