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230040056 = 23175928669
BaseRepresentation
bin11011011011000…
…10000111111000
3121000212020122002
431231202013320
5432342240211
634454320132
75462210501
oct1555420770
9530766562
10230040056
11108940554
1265059048
133887459c
14227a1ba8
15152e003b
hexdb621f8

230040056 has 32 divisors (see below), whose sum is σ = 464454000. Its totient is φ = 106415616.

The previous prime is 230040037. The next prime is 230040101. The reversal of 230040056 is 650040032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6311 + ... + 22358.

Almost surely, 2230040056 is an apocalyptic number.

It is an amenable number.

230040056 is an abundant number, since it is smaller than the sum of its proper divisors (234413944).

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

230040056 is a wasteful number, since it uses less digits than its factorization.

230040056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28751 (or 28747 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 230040056 is about 15167.0714378221. The cubic root of 230040056 is about 612.7281335937.

Adding to 230040056 its reverse (650040032), we get a palindrome (880080088).

The spelling of 230040056 in words is "two hundred thirty million, forty thousand, fifty-six".

Divisors: 1 2 4 8 17 34 59 68 118 136 236 472 1003 2006 4012 8024 28669 57338 114676 229352 487373 974746 1691471 1949492 3382942 3898984 6765884 13531768 28755007 57510014 115020028 230040056