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6120715225 = 52156472
BaseRepresentation
bin1011011001101001…
…01011001111011001
3120210120012112211111
411230310223033121
5100013400341400
62451204100321
7304451135542
oct55464531731
916716175744
106120715225
112660a90a39
1212299946a1
137670b33b1
14420c734c9
1525c5303ba
hex16cd2b3d9

6120715225 has 9 divisors (see below), whose sum is σ = 7590171967. Its totient is φ = 4896259240.

The previous prime is 6120715213. The next prime is 6120715267. The reversal of 6120715225 is 5225170216.

The square root of 6120715225 is 78235.

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., 2203457481 + 3917257744 = 46941^2 + 62588^2 .

It is not a de Polignac number, because 6120715225 - 221 = 6118618073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 383352 + ... + 398998.

Almost surely, 26120715225 is an apocalyptic number.

6120715225 is the 78235-th square number.

6120715225 is the 39118-th centered octagonal number.

It is an amenable number.

6120715225 is a deficient number, since it is larger than the sum of its proper divisors (1469456742).

6120715225 is an frugal number, since it uses more digits than its factorization.

6120715225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31304 (or 15652 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The cubic root of 6120715225 is about 1829.2261078217.

The spelling of 6120715225 in words is "six billion, one hundred twenty million, seven hundred fifteen thousand, two hundred twenty-five".

Divisors: 1 5 25 15647 78235 391175 244828609 1224143045 6120715225