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7714987225 = 5211215972
BaseRepresentation
bin1110010111101100…
…10101110011011001
3201220200002221212121
413023312111303121
5111300014042400
63313314541241
7362120211061
oct71366256331
921820087777
107714987225
1132a9a00100
1215b3897821
1395c491bca
145328b63a1
1530249c21a
hex1cbd95cd9

7714987225 has 27 divisors (see below), whose sum is σ = 10521924861. Its totient is φ = 5607386400.

The previous prime is 7714987223. The next prime is 7714987283. The reversal of 7714987225 is 5227894177.

The square root of 7714987225 is 87835.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1539542169 + 6175445056 = 39237^2 + 78584^2 .

It is not a de Polignac number, because 7714987225 - 21 = 7714987223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7714987223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4830127 + ... + 4831723.

Almost surely, 27714987225 is an apocalyptic number.

7714987225 is the 87835-th square number.

7714987225 is the 43918-th centered octagonal number.

It is an amenable number.

7714987225 is a deficient number, since it is larger than the sum of its proper divisors (2806937636).

7714987225 is an equidigital number, since it uses as much as digits as its factorization.

7714987225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226 (or 1613 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 52.

The cubic root of 7714987225 is about 1975.9611601070.

The spelling of 7714987225 in words is "seven billion, seven hundred fourteen million, nine hundred eighty-seven thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 121 275 605 1597 3025 7985 17567 39925 87835 193237 439175 966185 2550409 4830925 12752045 28054499 63760225 140272495 308599489 701362475 1542997445 7714987225