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107738215225 = 52656472
BaseRepresentation
bin110010001010110110…
…0101011001100111001
3101022002110110101221121
41210111230223030321
53231121440341400
6121254431505241
710532565501514
oct1442554531471
9338073411847
10107738215225
11417674607a3
1218a69388221
13a20ca45114
145300a61d7b
152c0877421a
hex1915b2b339

107738215225 has 9 divisors (see below), whose sum is σ = 133597421967. Its totient is φ = 86189259240.

The previous prime is 107738215223. The next prime is 107738215261. The reversal of 107738215225 is 522512837701.

The square root of 107738215225 is 328235.

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., 38785757481 + 68952457744 = 196941^2 + 262588^2 .

It is not a de Polignac number, because 107738215225 - 21 = 107738215223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107738215223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1608352 + ... + 1673998.

Almost surely, 2107738215225 is an apocalyptic number.

107738215225 is the 328235-th square number.

107738215225 is the 164118-th centered octagonal number.

It is an amenable number.

107738215225 is a deficient number, since it is larger than the sum of its proper divisors (25859206742).

107738215225 is an frugal number, since it uses more digits than its factorization.

107738215225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131304 (or 65652 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 107738215225 in words is "one hundred seven billion, seven hundred thirty-eight million, two hundred fifteen thousand, two hundred twenty-five".

Divisors: 1 5 25 65647 328235 1641175 4309528609 21547643045 107738215225