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289914742 = 213137199409
BaseRepresentation
bin10001010001111…
…011111101110110
3202012112012021001
4101101323331312
51043204232432
644433513514
710120143325
oct2121737566
9665465231
10289914742
11139716267
128111289a
13480a94b0
142a70a0bc
151a6ba9e7
hex1147bf76

289914742 has 32 divisors (see below), whose sum is σ = 475272000. Its totient is φ = 131839488.

The previous prime is 289914707. The next prime is 289914773. The reversal of 289914742 is 247419982.

289914742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 289914692 and 289914701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 708634 + ... + 709042.

It is an arithmetic number, because the mean of its divisors is an integer number (14852250).

Almost surely, 2289914742 is an apocalyptic number.

289914742 is a deficient number, since it is larger than the sum of its proper divisors (185357258).

289914742 is a wasteful number, since it uses less digits than its factorization.

289914742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760.

The product of its digits is 290304, while the sum is 46.

The square root of 289914742 is about 17026.8829208402. The cubic root of 289914742 is about 661.8457227282.

It can be divided in two parts, 28991 and 4742, that added together give a palindrome (33733).

The spelling of 289914742 in words is "two hundred eighty-nine million, nine hundred fourteen thousand, seven hundred forty-two".

Divisors: 1 2 13 26 137 199 274 398 409 818 1781 2587 3562 5174 5317 10634 27263 54526 56033 81391 112066 162782 354419 708838 728429 1058083 1456858 2116166 11150567 22301134 144957371 289914742