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245133396 = 22326809261
BaseRepresentation
bin11101001110001…
…11000001010100
3122002021001210200
432213013001110
51000223232041
640154020500
76034412424
oct1647070124
9562231720
10245133396
1111640a392
126a117730
133ba2a561
14247b0484
15167c21b6
hexe9c7054

245133396 has 18 divisors (see below), whose sum is σ = 619642842. Its totient is φ = 81711120.

The previous prime is 245133389. The next prime is 245133397. The reversal of 245133396 is 693331542.

It is a happy number.

245133396 is a `hidden beast` number, since 24 + 513 + 33 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 129140496 + 115992900 = 11364^2 + 10770^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 6809261 = 245133396 / (2 + 4 + 5 + 1 + 3 + 3 + 3 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 245133396.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245133397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3404595 + ... + 3404666.

Almost surely, 2245133396 is an apocalyptic number.

It is an amenable number.

245133396 is an abundant number, since it is smaller than the sum of its proper divisors (374509446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245133396 is a wasteful number, since it uses less digits than its factorization.

245133396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809271 (or 6809266 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 245133396 is about 15656.7364415449. The cubic root of 245133396 is about 625.8460188732.

The spelling of 245133396 in words is "two hundred forty-five million, one hundred thirty-three thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 18 36 6809261 13618522 20427783 27237044 40855566 61283349 81711132 122566698 245133396