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147982893 = 349327631
BaseRepresentation
bin10001101001000…
…00101000101101
3101022110022100220
420310200220231
5300340423033
622403441553
73444556002
oct1064405055
9338408326
10147982893
1176594813
12416862b9
1324873a56
14159218a9
15ced1bb3
hex8d20a2d

147982893 has 4 divisors (see below), whose sum is σ = 197310528. Its totient is φ = 98655260.

The previous prime is 147982883. The next prime is 147982907. The reversal of 147982893 is 398289741.

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 147982893 - 26 = 147982829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147982883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24663813 + ... + 24663818.

It is an arithmetic number, because the mean of its divisors is an integer number (49327632).

Almost surely, 2147982893 is an apocalyptic number.

It is an amenable number.

147982893 is a deficient number, since it is larger than the sum of its proper divisors (49327635).

147982893 is an equidigital number, since it uses as much as digits as its factorization.

147982893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49327634.

The product of its digits is 870912, while the sum is 51.

The square root of 147982893 is about 12164.8219469090. The cubic root of 147982893 is about 528.9368661426.

The spelling of 147982893 in words is "one hundred forty-seven million, nine hundred eighty-two thousand, eight hundred ninety-three".

Divisors: 1 3 49327631 147982893