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234145870 = 2573344941
BaseRepresentation
bin11011111010011…
…00100001001110
3121022120211202021
431331030201032
5434420131440
635122320354
75542131010
oct1575144116
9538524667
10234145870
11110195292
12664b90ba
133968136a
14231501b0
151585184a
hexdf4c84e

234145870 has 16 divisors (see below), whose sum is σ = 481671648. Its totient is φ = 80278560.

The previous prime is 234145837. The next prime is 234145871. The reversal of 234145870 is 78541432.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234145871) 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, 1672401 + ... + 1672540.

It is an arithmetic number, because the mean of its divisors is an integer number (30104478).

Almost surely, 2234145870 is an apocalyptic number.

234145870 is an abundant number, since it is smaller than the sum of its proper divisors (247525778).

234145870 is a wasteful number, since it uses less digits than its factorization.

234145870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344955.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 234145870 is about 15301.8257080650. The cubic root of 234145870 is about 616.3520346116.

The spelling of 234145870 in words is "two hundred thirty-four million, one hundred forty-five thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 3344941 6689882 16724705 23414587 33449410 46829174 117072935 234145870