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230425636 = 22722394919
BaseRepresentation
bin11011011110000…
…00010000100100
3121001120211112211
431233000100210
5432442110021
634510453204
75465404600
oct1557002044
9531524484
10230425636
11109084211
1265204204
133897ac3c
1422862500
15153693e1
hexdbc0424

230425636 has 36 divisors (see below), whose sum is σ = 471139200. Its totient is φ = 98320656.

The previous prime is 230425627. The next prime is 230425639. The reversal of 230425636 is 636524032.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 230425598 and 230425607.

It is not an unprimeable number, because it can be changed into a prime (230425639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44385 + ... + 49303.

It is an arithmetic number, because the mean of its divisors is an integer number (13087200).

Almost surely, 2230425636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 230425636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235569600).

230425636 is an abundant number, since it is smaller than the sum of its proper divisors (240713564).

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

230425636 is a wasteful number, since it uses less digits than its factorization.

230425636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5176 (or 5167 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 230425636 is about 15179.7772052162. Note that the first 3 decimals coincide. The cubic root of 230425636 is about 613.0702824658.

Adding to 230425636 its reverse (636524032), we get a palindrome (866949668).

The spelling of 230425636 in words is "two hundred thirty million, four hundred twenty-five thousand, six hundred thirty-six".

Divisors: 1 2 4 7 14 28 49 98 196 239 478 956 1673 3346 4919 6692 9838 11711 19676 23422 34433 46844 68866 137732 241031 482062 964124 1175641 2351282 4702564 8229487 16458974 32917948 57606409 115212818 230425636