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48790225 = 521121272
BaseRepresentation
bin1011101000011…
…1101011010001
310101210210121101
42322013223101
544442241400
64501424401
71131465361
oct272075321
9111723541
1048790225
11255a4900
121440b101
13a153873
1466a09a1
15443b56a
hex2e87ad1

48790225 has 27 divisors (see below), whose sum is σ = 67027611. Its totient is φ = 35204400.

The previous prime is 48790213. The next prime is 48790243. The reversal of 48790225 is 52209784.

The square root of 48790225 is 6985.

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., 17564481 + 31225744 = 4191^2 + 5588^2 .

It is not a de Polignac number, because 48790225 - 25 = 48790193 is a prime.

It is a super-3 number, since 3×487902253 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 384112 + ... + 384238.

Almost surely, 248790225 is an apocalyptic number.

48790225 is the 6985-th square number.

48790225 is the 3493-rd centered octagonal number.

It is an amenable number.

48790225 is a deficient number, since it is larger than the sum of its proper divisors (18237386).

48790225 is a wasteful number, since it uses less digits than its factorization.

48790225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The cubic root of 48790225 is about 365.4076261664.

The spelling of 48790225 in words is "forty-eight million, seven hundred ninety thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 121 127 275 605 635 1397 3025 3175 6985 15367 16129 34925 76835 80645 177419 384175 403225 887095 1951609 4435475 9758045 48790225