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234221361 = 31159311969
BaseRepresentation
bin11011111010111…
…10111100110001
3121022201200022020
431331132330301
5434430040421
635124102053
75542564053
oct1575367461
9538650266
10234221361
11110236a80
1266534929
13396a982a
142316d8d3
1515868dc6
hexdf5ef31

234221361 has 16 divisors (see below), whose sum is σ = 341288640. Its totient is φ = 141701120.

The previous prime is 234221357. The next prime is 234221369. The reversal of 234221361 is 163122432.

It is not a de Polignac number, because 234221361 - 22 = 234221357 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234221369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13585 + ... + 25553.

It is an arithmetic number, because the mean of its divisors is an integer number (21330540).

Almost surely, 2234221361 is an apocalyptic number.

It is an amenable number.

234221361 is a deficient number, since it is larger than the sum of its proper divisors (107067279).

234221361 is a wasteful number, since it uses less digits than its factorization.

234221361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12576.

The product of its digits is 1728, while the sum is 24.

The square root of 234221361 is about 15304.2922410675. The cubic root of 234221361 is about 616.4182668737.

Adding to 234221361 its reverse (163122432), we get a palindrome (397343793).

The spelling of 234221361 in words is "two hundred thirty-four million, two hundred twenty-one thousand, three hundred sixty-one".

Divisors: 1 3 11 33 593 1779 6523 11969 19569 35907 131659 394977 7097617 21292851 78073787 234221361