Search a number
-
+
142370452 = 2278957131
BaseRepresentation
bin10000111110001…
…10011010010100
3100220220011112201
420133012122110
5242421323302
622043254244
73346062130
oct1037063224
9326804481
10142370452
1173401034
123b81a384
132365a293
1414ca03c0
15c773c87
hex87c6694

142370452 has 24 divisors (see below), whose sum is σ = 287945280. Its totient is φ = 60329280.

The previous prime is 142370419. The next prime is 142370453. The reversal of 142370452 is 254073241.

142370452 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 142370452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142370453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26074 + ... + 31057.

It is an arithmetic number, because the mean of its divisors is an integer number (11997720).

Almost surely, 2142370452 is an apocalyptic number.

It is an amenable number.

142370452 is an abundant number, since it is smaller than the sum of its proper divisors (145574828).

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

142370452 is a wasteful number, since it uses less digits than its factorization.

142370452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57231 (or 57229 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 142370452 is about 11931.9089838969. The cubic root of 142370452 is about 522.1636329287.

The spelling of 142370452 in words is "one hundred forty-two million, three hundred seventy thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 89 178 356 623 1246 2492 57131 114262 228524 399917 799834 1599668 5084659 10169318 20338636 35592613 71185226 142370452