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102202121310 = 23519317651489
BaseRepresentation
bin101111100101110111…
…0001001110001011110
3100202210122022200210020
41133023232021301132
53133302220340220
6114541230053010
710245443461152
oct1371356116136
9322718280706
10102202121310
113a386484473
121798334a166
139839b047c3
144d376d1062
1529d2725040
hex17cbb89c5e

102202121310 has 32 divisors (see below), whose sum is σ = 246556012320. Its totient is φ = 27112685568.

The previous prime is 102202121303. The next prime is 102202121341. The reversal of 102202121310 is 13121202201.

It is a super-2 number, since 2×1022021213102 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 102202121310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8819955 + ... + 8831534.

It is an arithmetic number, because the mean of its divisors is an integer number (7704875385).

Almost surely, 2102202121310 is an apocalyptic number.

102202121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102202121310 is an abundant number, since it is smaller than the sum of its proper divisors (144353891010).

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

102202121310 is a wasteful number, since it uses less digits than its factorization.

102202121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17651692.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 102202121310 its reverse (13121202201), we get a palindrome (115323323511).

The spelling of 102202121310 in words is "one hundred two billion, two hundred two million, one hundred twenty-one thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 193 386 579 965 1158 1930 2895 5790 17651489 35302978 52954467 88257445 105908934 176514890 264772335 529544670 3406737377 6813474754 10220212131 17033686885 20440424262 34067373770 51101060655 102202121310