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45313211161 = 2128692
BaseRepresentation
bin101010001100111000…
…001011101100011001
311022221221210122000001
4222030320023230121
51220300140224121
632452215213001
73162621640231
oct521470135431
9138857718001
1045313211161
1118243143249
128947377161
134371a862aa
14229c0c0cc1
1512a31ab991
hexa8ce0bb19

45313211161 has 3 divisors (see below), whose sum is σ = 45313424031. Its totient is φ = 45312998292.

The previous prime is 45313211137. The next prime is 45313211227. The reversal of 45313211161 is 16111231354.

The square root of 45313211161 is 212869.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16111231354 = 28055615677.

It can be written as a sum of positive squares in only one way, i.e., 29179130761 + 16134080400 = 170819^2 + 127020^2 .

It is not a de Polignac number, because 45313211161 - 27 = 45313211033 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45313211861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 106435 + ... + 319303.

It is an arithmetic number, because the mean of its divisors is an integer number (15104474677).

Almost surely, 245313211161 is an apocalyptic number.

45313211161 is the 212869-th square number.

45313211161 is the 106435-th centered octagonal number.

It is an amenable number.

45313211161 is a deficient number, since it is larger than the sum of its proper divisors (212870).

45313211161 is an frugal number, since it uses more digits than its factorization.

45313211161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425738 (or 212869 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The spelling of 45313211161 in words is "forty-five billion, three hundred thirteen million, two hundred eleven thousand, one hundred sixty-one".

Divisors: 1 212869 45313211161