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142237532 = 2247037561
BaseRepresentation
bin10000111101001…
…01111101011100
3100220122102012202
420132211331130
5242403100112
622040351032
73344666453
oct1036457534
9326572182
10142237532
1173320188
123b775478
1323611928
1414c67b9a
15c7496c2
hex87a5f5c

142237532 has 12 divisors (see below), whose sum is σ = 249001536. Its totient is φ = 71094240.

The previous prime is 142237499. The next prime is 142237567. The reversal of 142237532 is 235732241.

It is a junction number, because it is equal to n+sod(n) for n = 142237495 and 142237504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15032 + ... + 22592.

It is an arithmetic number, because the mean of its divisors is an integer number (20750128).

Almost surely, 2142237532 is an apocalyptic number.

It is an amenable number.

142237532 is a deficient number, since it is larger than the sum of its proper divisors (106764004).

142237532 is a wasteful number, since it uses less digits than its factorization.

142237532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12268 (or 12266 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 142237532 is about 11926.3377446725. The cubic root of 142237532 is about 522.0010814068.

Adding to 142237532 its reverse (235732241), we get a palindrome (377969773).

The spelling of 142237532 in words is "one hundred forty-two million, two hundred thirty-seven thousand, five hundred thirty-two".

Divisors: 1 2 4 4703 7561 9406 15122 18812 30244 35559383 71118766 142237532