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230273644 = 22379671609
BaseRepresentation
bin11011011100110…
…11001001101100
3121001022010001111
431232123021230
5432422224034
634503321404
75464202506
oct1556331154
9531263044
10230273644
11108a8aaa7
1265150264
13389269c3
1422822d76
1515339364
hexdb9b26c

230273644 has 24 divisors (see below), whose sum is σ = 414555680. Its totient is φ = 111839616.

The previous prime is 230273587. The next prime is 230273647. The reversal of 230273644 is 446372032.

It is a super-2 number, since 2×2302736442 = 106051902242077472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230273647) 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, 142312 + ... + 143920.

Almost surely, 2230273644 is an apocalyptic number.

It is an amenable number.

230273644 is a deficient number, since it is larger than the sum of its proper divisors (184282036).

230273644 is a wasteful number, since it uses less digits than its factorization.

230273644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617 (or 2615 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 230273644 is about 15174.7699817823. The cubic root of 230273644 is about 612.9354562148.

The spelling of 230273644 in words is "two hundred thirty million, two hundred seventy-three thousand, six hundred forty-four".

Divisors: 1 2 4 37 74 148 967 1609 1934 3218 3868 6436 35779 59533 71558 119066 143116 238132 1555903 3111806 6223612 57568411 115136822 230273644