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102102031203102 = 235730012354851
BaseRepresentation
bin10111001101110001111011…
…010011001111101100011110
3111101111212012002212112100000
4113031301323103033230132
5101340314424441444402
61001053005310315130
730335425341436620
oct2715617323175436
9441455162775300
10102102031203102
112a595256902007
12b5500837b8aa6
1344c8245c6a878
141b2da9c3c0c10
15bc0d94eaec1c
hex5cdc7b4cfb1e

102102031203102 has 48 divisors (see below), whose sum is σ = 262187931987072. Its totient is φ = 29172008914200.

The previous prime is 102102031203101. The next prime is 102102031203113. The reversal of 102102031203102 is 201302130201201.

102102031203102 is a `hidden beast` number, since 1 + 0 + 21 + 0 + 20 + 312 + 0 + 310 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102031203101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15006174024 + ... + 15006180827.

It is an arithmetic number, because the mean of its divisors is an integer number (5462248583064).

Almost surely, 2102102031203102 is an apocalyptic number.

102102031203102 is an abundant number, since it is smaller than the sum of its proper divisors (160085900783970).

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

102102031203102 is an equidigital number, since it uses as much as digits as its factorization.

102102031203102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30012354875 (or 30012354863 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102102031203102 its reverse (201302130201201), we get a palindrome (303404161404303).

The spelling of 102102031203102 in words is "one hundred two trillion, one hundred two billion, thirty-one million, two hundred three thousand, one hundred two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 243 378 486 567 1134 1701 3402 30012354851 60024709702 90037064553 180074129106 210086483957 270111193659 420172967914 540222387318 630259451871 810333580977 1260518903742 1620667161954 1890778355613 2431000742931 3781556711226 4862001485862 5672335066839 7293002228793 11344670133678 14586004457586 17017005200517 34034010401034 51051015601551 102102031203102