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289929741 = 396643247
BaseRepresentation
bin10001010001111…
…111101000001101
3202012112221211120
4101101333220031
51043210222431
644434111153
710120235133
oct2121775015
9665487746
10289929741
11139726562
128111b4b9
13480b327a
142a711753
151a6c0196
hex1147fa0d

289929741 has 4 divisors (see below), whose sum is σ = 386572992. Its totient is φ = 193286492.

The previous prime is 289929719. The next prime is 289929749. The reversal of 289929741 is 147929982.

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 289929741 - 26 = 289929677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289929749) 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, 48321621 + ... + 48321626.

It is an arithmetic number, because the mean of its divisors is an integer number (96643248).

Almost surely, 2289929741 is an apocalyptic number.

It is an amenable number.

289929741 is a deficient number, since it is larger than the sum of its proper divisors (96643251).

289929741 is an equidigital number, since it uses as much as digits as its factorization.

289929741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96643250.

The product of its digits is 653184, while the sum is 51.

The square root of 289929741 is about 17027.3233656967. The cubic root of 289929741 is about 661.8571362594.

It can be divided in two parts, 2899 and 29741, that added together give a triangular number (32640 = T255).

The spelling of 289929741 in words is "two hundred eighty-nine million, nine hundred twenty-nine thousand, seven hundred forty-one".

Divisors: 1 3 96643247 289929741