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243323054 = 21382111399
BaseRepresentation
bin11101000000011…
…01000010101110
3121221212002110222
432200031002232
5444242314204
640051131342
76013132442
oct1640150256
9557762428
10243323054
11115393237
12695a3b52
133b545550
142445c822
1516565abe
hexe80d0ae

243323054 has 16 divisors (see below), whose sum is σ = 393573600. Its totient is φ = 112156320.

The previous prime is 243323033. The next prime is 243323077. The reversal of 243323054 is 450323342.

It is a super-2 number, since 2×2433230542 = 118412217215773832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15647 + ... + 27045.

It is an arithmetic number, because the mean of its divisors is an integer number (24598350).

Almost surely, 2243323054 is an apocalyptic number.

243323054 is a deficient number, since it is larger than the sum of its proper divisors (150250546).

243323054 is a wasteful number, since it uses less digits than its factorization.

243323054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12235.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 243323054 is about 15598.8157883860. The cubic root of 243323054 is about 624.3015591928.

Adding to 243323054 its reverse (450323342), we get a palindrome (693646396).

The spelling of 243323054 in words is "two hundred forty-three million, three hundred twenty-three thousand, fifty-four".

Divisors: 1 2 13 26 821 1642 10673 11399 21346 22798 148187 296374 9358579 18717158 121661527 243323054