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10102020198 = 23103131124781
BaseRepresentation
bin10010110100010000…
…01001100001100110
3222002000201210112020
421122020021201212
5131142104121243
64350225204010
7505223516634
oct113210114146
928060653466
1010102020198
114314366326
121b5b190606
13c4cb8a65a
146bb91c354
153e1d11283
hex25a209866

10102020198 has 32 divisors (see below), whose sum is σ = 20556087552. Its totient is φ = 3309165600.

The previous prime is 10102020191. The next prime is 10102020239. The reversal of 10102020198 is 89102020101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102020191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18568 + ... + 143348.

It is an arithmetic number, because the mean of its divisors is an integer number (642377736).

Almost surely, 210102020198 is an apocalyptic number.

10102020198 is an abundant number, since it is smaller than the sum of its proper divisors (10454067354).

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

10102020198 is a wasteful number, since it uses less digits than its factorization.

10102020198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125020.

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 10102020198 its reverse (89102020101), we get a palindrome (99204040299).

The spelling of 10102020198 in words is "ten billion, one hundred two million, twenty thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 103 131 206 262 309 393 618 786 13493 26986 40479 80958 124781 249562 374343 748686 12852443 16346311 25704886 32692622 38557329 49038933 77114658 98077866 1683670033 3367340066 5051010099 10102020198