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234551142 = 232721715643
BaseRepresentation
bin11011111101011…
…11011101100110
3121100100102200100
431332233131212
5440021114032
635135124530
75545436400
oct1576573546
9540312610
10234551142
11110441821
1266673746
1339793977
1423217b70
15158d197c
hexdfaf766

234551142 has 72 divisors (see below), whose sum is σ = 625979016. Its totient is φ = 63068544.

The previous prime is 234551113. The next prime is 234551147. The reversal of 234551142 is 241155432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234551147) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7173 + ... + 22815.

It is an arithmetic number, because the mean of its divisors is an integer number (8694153).

Almost surely, 2234551142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234551142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312989508).

234551142 is an abundant number, since it is smaller than the sum of its proper divisors (391427874).

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

234551142 is a wasteful number, since it uses less digits than its factorization.

234551142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15682 (or 15672 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 234551142 is about 15315.0625855724. The cubic root of 234551142 is about 616.7074344933.

The spelling of 234551142 in words is "two hundred thirty-four million, five hundred fifty-one thousand, one hundred forty-two".

Divisors: 1 2 3 6 7 9 14 17 18 21 34 42 49 51 63 98 102 119 126 147 153 238 294 306 357 441 714 833 882 1071 1666 2142 2499 4998 7497 14994 15643 31286 46929 93858 109501 140787 219002 265931 281574 328503 531862 657006 766507 797793 985509 1533014 1595586 1861517 1971018 2299521 2393379 3723034 4599042 4786758 5584551 6898563 11169102 13030619 13797126 16753653 26061238 33507306 39091857 78183714 117275571 234551142