Search a number
-
+
142675791 = 3157302921
BaseRepresentation
bin10001000000100…
…00111101001111
3100221110200101120
420200100331033
5243011111131
622054012023
73351503256
oct1040207517
9327420346
10142675791
117359a485
123b947013
132373625b
1414d3d79d
15c7d4496
hex8810f4f

142675791 has 8 divisors (see below), whose sum is σ = 191446704. Its totient is φ = 94511040.

The previous prime is 142675789. The next prime is 142675801. The reversal of 142675791 is 197576241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142675791 - 21 = 142675789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142675711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150990 + ... + 151931.

It is an arithmetic number, because the mean of its divisors is an integer number (23930838).

Almost surely, 2142675791 is an apocalyptic number.

142675791 is a deficient number, since it is larger than the sum of its proper divisors (48770913).

142675791 is a wasteful number, since it uses less digits than its factorization.

142675791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303081.

The product of its digits is 105840, while the sum is 42.

The square root of 142675791 is about 11944.6971916412. The cubic root of 142675791 is about 522.5366576084.

The spelling of 142675791 in words is "one hundred forty-two million, six hundred seventy-five thousand, seven hundred ninety-one".

Divisors: 1 3 157 471 302921 908763 47558597 142675791