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1151223230 = 25115122323
BaseRepresentation
bin100010010011110…
…0100010110111110
32222020020012101102
41010213210112332
54324203120410
6310122413102
740346143643
oct10447442676
92866205342
101151223230
11540921063
12281661192
13154676aa1
14acc73dca
156b1032a5
hex449e45be

1151223230 has 8 divisors (see below), whose sum is σ = 2072201832. Its totient is φ = 460489288.

The previous prime is 1151223211. The next prime is 1151223239. The reversal of 1151223230 is 323221511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151223239) 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, 57561152 + ... + 57561171.

It is an arithmetic number, because the mean of its divisors is an integer number (259025229).

Almost surely, 21151223230 is an apocalyptic number.

1151223230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151223230 is a deficient number, since it is larger than the sum of its proper divisors (920978602).

1151223230 is a wasteful number, since it uses less digits than its factorization.

1151223230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115122330.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1151223230 is about 33929.6806645745. The cubic root of 1151223230 is about 1048.0608897425.

Adding to 1151223230 its reverse (323221511), we get a palindrome (1474444741).

The spelling of 1151223230 in words is "one billion, one hundred fifty-one million, two hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 115122323 230244646 575611615 1151223230