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107916849049 = 312105972
BaseRepresentation
bin110010010000001011…
…0000110111110011001
3101022112220120221111011
41210200112012332121
53232003203132144
6121324252333521
710540165040032
oct1444026067631
9338486527434
10107916849049
114184927aa59
1218ab91742a1
13a23aa5b1c9
14531a681a89
152c192aca34
hex1920586f99

107916849049 has 9 divisors (see below), whose sum is σ = 111520857951. Its totient is φ = 104425805160.

The previous prime is 107916849017. The next prime is 107916849077. The reversal of 107916849049 is 940948619701.

The square root of 107916849049 is 328507.

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

It can be written as a sum of positive squares in only one way, i.e., 3414649225 + 104502199824 = 58435^2 + 323268^2 .

It is not a de Polignac number, because 107916849049 - 25 = 107916849017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107916848984 and 107916849002.

It is not an unprimeable number, because it can be changed into a prime (107916849149) 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 8 ways as a sum of consecutive naturals, for example, 10178419 + ... + 10189015.

It is an arithmetic number, because the mean of its divisors is an integer number (12391206439).

Almost surely, 2107916849049 is an apocalyptic number.

107916849049 is the 328507-th square number.

107916849049 is the 164254-th centered octagonal number.

It is an amenable number.

107916849049 is a deficient number, since it is larger than the sum of its proper divisors (3604008902).

107916849049 is an frugal number, since it uses more digits than its factorization.

107916849049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21256 (or 10628 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 58.

The spelling of 107916849049 in words is "one hundred seven billion, nine hundred sixteen million, eight hundred forty-nine thousand, forty-nine".

Divisors: 1 31 961 10597 328507 10183717 112296409 3481188679 107916849049