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142453332 = 223274491259
BaseRepresentation
bin10000111110110…
…10101001010100
3100221001101020100
420133122221110
5242432001312
622045134100
73346555560
oct1037325124
9327041210
10142453332
117345832a
123b85a330
1323688c18
1414cc26a0
15c78d5dc
hex87daa54

142453332 has 72 divisors (see below), whose sum is σ = 412776000. Its totient is φ = 40578048.

The previous prime is 142453331. The next prime is 142453351. The reversal of 142453332 is 233354241.

142453332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 142453296 and 142453305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142453331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112519 + ... + 113777.

It is an arithmetic number, because the mean of its divisors is an integer number (5733000).

Almost surely, 2142453332 is an apocalyptic number.

142453332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142453332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206388000).

142453332 is an abundant number, since it is smaller than the sum of its proper divisors (270322668).

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

142453332 is a wasteful number, since it uses less digits than its factorization.

142453332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725 (or 1720 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 142453332 is about 11935.3815188288. The cubic root of 142453332 is about 522.2649379542.

Subtracting 142453332 from its reverse (233354241), we obtain a palindrome (90900909).

It can be divided in two parts, 1424 and 53332, that added together give a square (54756 = 2342).

The spelling of 142453332 in words is "one hundred forty-two million, four hundred fifty-three thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 449 898 1259 1347 1796 2518 2694 3143 3777 4041 5036 5388 6286 7554 8082 8813 9429 11331 12572 15108 16164 17626 18858 22662 26439 28287 35252 37716 45324 52878 56574 79317 105756 113148 158634 317268 565291 1130582 1695873 2261164 3391746 3957037 5087619 6783492 7914074 10175238 11871111 15828148 20350476 23742222 35613333 47484444 71226666 142453332