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76181225 = 5271167257
BaseRepresentation
bin1001000101001…
…10111011101001
312022100101222212
410202212323221
5124000244400
611320454505
71613346461
oct442467351
9168311885
1076181225
113a00309a
122161a435
1312a24163
14a190ba1
156a4c335
hex48a6ee9

76181225 has 24 divisors (see below), whose sum is σ = 96743808. Its totient is φ = 59494400.

The previous prime is 76181207. The next prime is 76181263. The reversal of 76181225 is 52218167.

It is not a de Polignac number, because 76181225 - 226 = 9072361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 76181191 and 76181200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296297 + ... + 296553.

It is an arithmetic number, because the mean of its divisors is an integer number (4030992).

Almost surely, 276181225 is an apocalyptic number.

It is an amenable number.

76181225 is a deficient number, since it is larger than the sum of its proper divisors (20562583).

76181225 is a wasteful number, since it uses less digits than its factorization.

76181225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 500 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 76181225 is about 8728.1856648447. The cubic root of 76181225 is about 423.9187741195.

The spelling of 76181225 in words is "seventy-six million, one hundred eighty-one thousand, two hundred twenty-five".

Divisors: 1 5 25 71 167 257 355 835 1285 1775 4175 6425 11857 18247 42919 59285 91235 214595 296425 456175 1072975 3047249 15236245 76181225