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102110102042 = 213231031657793
BaseRepresentation
bin101111100011000111…
…1001000001000011010
3100202120020011122002012
41133012033020020122
53133110141231132
6114524141505522
710243245355334
oct1370617101032
9322506148065
10102110102042
113a339543a93
12179585722a2
139823a26730
144d293ba454
1529c95ea0b2
hex17c63c821a

102110102042 has 32 divisors (see below), whose sum is σ = 173789860608. Its totient is φ = 44641022976.

The previous prime is 102110102041. The next prime is 102110102071. The reversal of 102110102042 is 240201011201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102110102041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767303 + ... + 890490.

It is an arithmetic number, because the mean of its divisors is an integer number (5430933144).

Almost surely, 2102110102042 is an apocalyptic number.

102110102042 is a deficient number, since it is larger than the sum of its proper divisors (71679758566).

102110102042 is a wasteful number, since it uses less digits than its factorization.

102110102042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657934.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102110102042 its reverse (240201011201), we get a palindrome (342311113243).

The spelling of 102110102042 in words is "one hundred two billion, one hundred ten million, one hundred two thousand, forty-two".

Divisors: 1 2 13 23 26 46 103 206 299 598 1339 2369 2678 4738 30797 61594 1657793 3315586 21551309 38129239 43102618 76258478 170752679 341505358 495680107 991360214 2219784827 3927311617 4439569654 7854623234 51055051021 102110102042