Search a number
-
+
145114979 = 199751971
BaseRepresentation
bin10001010011001…
…00011101100011
3101010001121022212
420221210131203
5244122134404
622222152335
73411312512
oct1051443543
9333047285
10145114979
1174a06039
12407226ab
13240ab569
14153b6679
15cb1706e
hex8a64763

145114979 has 8 divisors (see below), whose sum is σ = 146188800. Its totient is φ = 144045000.

The previous prime is 145114973. The next prime is 145114987. The reversal of 145114979 is 979411541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145114979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145114973) 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, 148964 + ... + 149934.

It is an arithmetic number, because the mean of its divisors is an integer number (18273600).

Almost surely, 2145114979 is an apocalyptic number.

145114979 is a deficient number, since it is larger than the sum of its proper divisors (1073821).

145114979 is an equidigital number, since it uses as much as digits as its factorization.

145114979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921.

The product of its digits is 45360, while the sum is 41.

The square root of 145114979 is about 12046.3678758371. The cubic root of 145114979 is about 525.4976131545.

The spelling of 145114979 in words is "one hundred forty-five million, one hundred fourteen thousand, nine hundred seventy-nine".

Divisors: 1 199 751 971 149449 193229 729221 145114979