Search a number
-
+
147945029 = 1439102811
BaseRepresentation
bin10001101000101…
…11011001000101
3101022101101102112
420310113121011
5300333220104
622402550405
73444340421
oct1064273105
9338341375
10147945029
1176569321
1241668405
132485c74b
1415911b81
15cec586e
hex8d17645

147945029 has 4 divisors (see below), whose sum is σ = 148049280. Its totient is φ = 147840780.

The previous prime is 147945019. The next prime is 147945047. The reversal of 147945029 is 920549741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 147945029 - 24 = 147945013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147945019) 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 3 ways as a sum of consecutive naturals, for example, 49967 + ... + 52844.

It is an arithmetic number, because the mean of its divisors is an integer number (37012320).

Almost surely, 2147945029 is an apocalyptic number.

It is an amenable number.

147945029 is a deficient number, since it is larger than the sum of its proper divisors (104251).

147945029 is a wasteful number, since it uses less digits than its factorization.

147945029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104250.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 147945029 is about 12163.2655565847. The cubic root of 147945029 is about 528.8917497253.

The spelling of 147945029 in words is "one hundred forty-seven million, nine hundred forty-five thousand, twenty-nine".

Divisors: 1 1439 102811 147945029