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230153211 = 338524193
BaseRepresentation
bin11011011011111…
…01101111111011
3121001001222212000
431231331233323
5432404400321
634500552043
75463161421
oct1555755773
9531058760
10230153211
11108a08572
12650b2623
13388b3c42
14227d1111
1515313826
hexdb7dbfb

230153211 has 8 divisors (see below), whose sum is σ = 340967760. Its totient is φ = 153435456.

The previous prime is 230153201. The next prime is 230153227. The reversal of 230153211 is 112351032.

It is not a de Polignac number, because 230153211 - 25 = 230153179 is a prime.

It is a super-2 number, since 2×2301532112 = 105941001067221042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230153201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4262070 + ... + 4262123.

It is an arithmetic number, because the mean of its divisors is an integer number (42620970).

Almost surely, 2230153211 is an apocalyptic number.

230153211 is a deficient number, since it is larger than the sum of its proper divisors (110814549).

230153211 is an equidigital number, since it uses as much as digits as its factorization.

230153211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8524202 (or 8524196 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 230153211 is about 15170.8012642708. The cubic root of 230153211 is about 612.8285826026.

The spelling of 230153211 in words is "two hundred thirty million, one hundred fifty-three thousand, two hundred eleven".

Divisors: 1 3 9 27 8524193 25572579 76717737 230153211