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234143898 = 23131297893
BaseRepresentation
bin11011111010011…
…00000010011010
3121022120202001020
431331030002122
5434420101043
635122303310
75542122162
oct1575140232
9538522036
10234143898
1111019385a
12664b7b36
13396804b1
142314d5a2
1515850e83
hexdf4c09a

234143898 has 16 divisors (see below), whose sum is σ = 471864096. Its totient is φ = 77451920.

The previous prime is 234143891. The next prime is 234143929. The reversal of 234143898 is 898341432.

234143898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (234143891) 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, 148161 + ... + 149732.

It is an arithmetic number, because the mean of its divisors is an integer number (29491506).

Almost surely, 2234143898 is an apocalyptic number.

234143898 is an abundant number, since it is smaller than the sum of its proper divisors (237720198).

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

234143898 is a wasteful number, since it uses less digits than its factorization.

234143898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298029.

The product of its digits is 165888, while the sum is 42.

The square root of 234143898 is about 15301.7612711740. The cubic root of 234143898 is about 616.3503042805.

The spelling of 234143898 in words is "two hundred thirty-four million, one hundred forty-three thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 131 262 393 786 297893 595786 893679 1787358 39023983 78047966 117071949 234143898