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234510642 = 23213028369
BaseRepresentation
bin11011111101001…
…01100100110010
3121100021101010100
431332211210302
5440013320032
635134213230
75545210332
oct1576454462
9540241110
10234510642
11110414353
1266654216
133977b3c2
14232070c2
15158c497c
hexdfa5932

234510642 has 12 divisors (see below), whose sum is σ = 508106430. Its totient is φ = 78170208.

The previous prime is 234510641. The next prime is 234510649. The reversal of 234510642 is 246015432.

234510642 is a `hidden beast` number, since 2 + 3 + 4 + 5 + 10 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 234365481 + 145161 = 15309^2 + 381^2 .

It is a super-2 number, since 2×2345106422 = 109990482422504328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (234510641) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6514167 + ... + 6514202.

Almost surely, 2234510642 is an apocalyptic number.

234510642 is an abundant number, since it is smaller than the sum of its proper divisors (273595788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234510642 is a wasteful number, since it uses less digits than its factorization.

234510642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13028377 (or 13028374 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 234510642 is about 15313.7403007887. The cubic root of 234510642 is about 616.6719367783.

The spelling of 234510642 in words is "two hundred thirty-four million, five hundred ten thousand, six hundred forty-two".

Divisors: 1 2 3 6 9 18 13028369 26056738 39085107 78170214 117255321 234510642