Search a number
-
+
142807153 = 373382861
BaseRepresentation
bin10001000001100…
…01000001110001
3100221201100120211
420200301001301
5243024312103
622100504121
73352561246
oct1040610161
9327640524
10142807153
117367a145
123b9ab041
1323780c98
1414d755cd
15c80d36d
hex8831071

142807153 has 4 divisors (see below), whose sum is σ = 143190388. Its totient is φ = 142423920.

The previous prime is 142807151. The next prime is 142807163. The reversal of 142807153 is 351708241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100661089 + 42146064 = 10033^2 + 6492^2 .

It is a cyclic number.

It is not a de Polignac number, because 142807153 - 21 = 142807151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142807151) 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, 191058 + ... + 191803.

It is an arithmetic number, because the mean of its divisors is an integer number (35797597).

Almost surely, 2142807153 is an apocalyptic number.

It is an amenable number.

142807153 is a deficient number, since it is larger than the sum of its proper divisors (383235).

142807153 is an equidigital number, since it uses as much as digits as its factorization.

142807153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383234.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 142807153 is about 11950.1946846066. The cubic root of 142807153 is about 522.6969754043.

The spelling of 142807153 in words is "one hundred forty-two million, eight hundred seven thousand, one hundred fifty-three".

Divisors: 1 373 382861 142807153