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102102202030 = 2511390355931
BaseRepresentation
bin101111100010111000…
…0111111011010101110
3100202112200022021022011
41133011300333122232
53133101130431110
6114523300311434
710243121253253
oct1370560773256
9322480267264
10102102202030
113a335038654
12179559a257a
1398221bb97a
144d2832142a
1529c8a8948a
hex17c5c3f6ae

102102202030 has 16 divisors (see below), whose sum is σ = 185410372464. Its totient is φ = 40479456640.

The previous prime is 102102201997. The next prime is 102102202031. The reversal of 102102202030 is 30202201201.

It is a super-2 number, since 2×1021022020302 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102102202030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102202031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45176836 + ... + 45179095.

It is an arithmetic number, because the mean of its divisors is an integer number (11588148279).

Almost surely, 2102102202030 is an apocalyptic number.

102102202030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102202030 is a deficient number, since it is larger than the sum of its proper divisors (83308170434).

102102202030 is a wasteful number, since it uses less digits than its factorization.

102102202030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90356051.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 102102202030 its reverse (30202201201), we get a palindrome (132304403231).

The spelling of 102102202030 in words is "one hundred two billion, one hundred two million, two hundred two thousand, thirty".

Divisors: 1 2 5 10 113 226 565 1130 90355931 180711862 451779655 903559310 10210220203 20420440406 51051101015 102102202030