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102201311312 = 246387581957
BaseRepresentation
bin101111100101110101…
…1000100000001010000
3100202210120210112200022
41133023223010001100
53133302013430222
6114541200443012
710245433545512
oct1371353040120
9322716715608
10102201311312
113a385a80951
1217983019468
1398398acc09
144d3755dbb2
1529d2615042
hex17cbac4050

102201311312 has 10 divisors (see below), whose sum is σ = 198015040698. Its totient is φ = 51100655648.

The previous prime is 102201311273. The next prime is 102201311327. The reversal of 102201311312 is 213113102201.

It can be written as a sum of positive squares in only one way, i.e., 88885074496 + 13316236816 = 298136^2 + 115396^2 .

It is a super-2 number, since 2×1022013113122 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3193790963 + ... + 3193790994.

Almost surely, 2102201311312 is an apocalyptic number.

It is an amenable number.

102201311312 is a deficient number, since it is larger than the sum of its proper divisors (95813729386).

102201311312 is an equidigital number, since it uses as much as digits as its factorization.

102201311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6387581965 (or 6387581959 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102201311312 its reverse (213113102201), we get a palindrome (315314413513).

The spelling of 102201311312 in words is "one hundred two billion, two hundred one million, three hundred eleven thousand, three hundred twelve".

Divisors: 1 2 4 8 16 6387581957 12775163914 25550327828 51100655656 102201311312