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234111988 = 22115320727
BaseRepresentation
bin11011111010001…
…00001111110100
3121022112010021101
431331010033310
5434413040423
635121455444
75541630145
oct1575041764
9538463241
10234111988
11110171890
12664a1584
133966bb06
1423141acc
15158467ad
hexdf443f4

234111988 has 12 divisors (see below), whose sum is σ = 446941152. Its totient is φ = 106414520.

The previous prime is 234111973. The next prime is 234111989. The reversal of 234111988 is 889111432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234111989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2660320 + ... + 2660407.

It is an arithmetic number, because the mean of its divisors is an integer number (37245096).

Almost surely, 2234111988 is an apocalyptic number.

It is an amenable number.

234111988 is a deficient number, since it is larger than the sum of its proper divisors (212829164).

234111988 is a wasteful number, since it uses less digits than its factorization.

234111988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5320742 (or 5320740 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 234111988 is about 15300.7185452187. The cubic root of 234111988 is about 616.3223035056.

The spelling of 234111988 in words is "two hundred thirty-four million, one hundred eleven thousand, nine hundred eighty-eight".

Divisors: 1 2 4 11 22 44 5320727 10641454 21282908 58527997 117055994 234111988