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131020230314048 = 262047191098657
BaseRepresentation
bin11101110010100110000110…
…010010010100100001000000
3122011220102010010100010222112
4131302212012102110201000
5114133113412430022143
61142353510214154452
736411620306246105
oct3562460622244100
9564812103303875
10131020230314048
113882440535a529
1212840722052a28
135815201b6784a
14244d5ad320aac
15102320bdc1e18
hex772986494840

131020230314048 has 14 divisors (see below), whose sum is σ = 259993269529566. Its totient is φ = 65510115156992.

The previous prime is 131020230314047. The next prime is 131020230314053. The reversal of 131020230314048 is 840413032020131.

It can be written as a sum of positive squares in only one way, i.e., 130780083271744 + 240147042304 = 11435912^2 + 490048^2 .

It is a super-2 number, since 2×1310202303140482 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (131020230314047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023595549265 + ... + 1023595549392.

Almost surely, 2131020230314048 is an apocalyptic number.

It is an amenable number.

131020230314048 is a deficient number, since it is larger than the sum of its proper divisors (128973039215518).

131020230314048 is an equidigital number, since it uses as much as digits as its factorization.

131020230314048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047191098669 (or 2047191098659 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 131020230314048 its reverse (840413032020131), we get a palindrome (971433262334179).

The spelling of 131020230314048 in words is "one hundred thirty-one trillion, twenty billion, two hundred thirty million, three hundred fourteen thousand, forty-eight".

Divisors: 1 2 4 8 16 32 64 2047191098657 4094382197314 8188764394628 16377528789256 32755057578512 65510115157024 131020230314048