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230052980 = 22511502649
BaseRepresentation
bin11011011011001…
…01010001110100
3121000212220100202
431231211101310
5432343143410
634454500032
75462263253
oct1555452164
9530786322
10230052980
1110894a233
1265064618
133887a431
14227a679a
15152e3ca5
hexdb65474

230052980 has 12 divisors (see below), whose sum is σ = 483111300. Its totient is φ = 92021184.

The previous prime is 230052947. The next prime is 230052983. The reversal of 230052980 is 89250032.

It can be written as a sum of positive squares in 2 ways, for example, as 141467236 + 88585744 = 11894^2 + 9412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230052983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5751305 + ... + 5751344.

It is an arithmetic number, because the mean of its divisors is an integer number (40259275).

Almost surely, 2230052980 is an apocalyptic number.

230052980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230052980 is an abundant number, since it is smaller than the sum of its proper divisors (253058320).

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

230052980 is a wasteful number, since it uses less digits than its factorization.

230052980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502658 (or 11502656 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 230052980 is about 15167.4974864016. The cubic root of 230052980 is about 612.7396080448.

The spelling of 230052980 in words is "two hundred thirty million, fifty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 11502649 23005298 46010596 57513245 115026490 230052980