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7102225 = 52132412
BaseRepresentation
bin11011000101111100010001
3111100211102101
4123011330101
53304232400
6412120401
7114240124
oct33057421
914324371
107102225
114011009
122466101
131618900
14d2c3bb
1595456a
hex6c5f11

7102225 has 27 divisors (see below), whose sum is σ = 9774579. Its totient is φ = 5116800.

The previous prime is 7102223. The next prime is 7102229. The reversal of 7102225 is 5222017.

The square root of 7102225 is 2665.

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

It can be written as a sum of positive squares in 13 ways, for example, as 6436369 + 665856 = 2537^2 + 816^2 .

It is not a de Polignac number, because 7102225 - 21 = 7102223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7102223) 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, 173205 + ... + 173245.

Almost surely, 27102225 is an apocalyptic number.

7102225 is the 2665-th square number.

7102225 is the 1333-rd centered octagonal number.

It is an amenable number.

7102225 is a deficient number, since it is larger than the sum of its proper divisors (2672354).

7102225 is a wasteful number, since it uses less digits than its factorization.

7102225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The cubic root of 7102225 is about 192.2198093829.

The spelling of 7102225 in words is "seven million, one hundred two thousand, two hundred twenty-five".