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289423496 = 23217916603
BaseRepresentation
bin10001010000000…
…100000010001000
3202011121020101202
4101100010002020
51043043022441
644415203332
710113026165
oct2120040210
9664536352
10289423496
1113941017a
1280b16548
1347c66a0b
142a61d06c
151a62019b
hex11404088

289423496 has 16 divisors (see below), whose sum is σ = 542950800. Its totient is φ = 144636624.

The previous prime is 289423441. The next prime is 289423499. The reversal of 289423496 is 694324982.

289423496 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 289423496.

It is not an unprimeable number, because it can be changed into a prime (289423499) 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, 9131 + ... + 25733.

It is an arithmetic number, because the mean of its divisors is an integer number (33934425).

Almost surely, 2289423496 is an apocalyptic number.

It is an amenable number.

289423496 is a deficient number, since it is larger than the sum of its proper divisors (253527304).

289423496 is a wasteful number, since it uses less digits than its factorization.

289423496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18788 (or 18784 counting only the distinct ones).

The product of its digits is 746496, while the sum is 47.

The square root of 289423496 is about 17012.4512049263. The cubic root of 289423496 is about 661.4716899200.

The spelling of 289423496 in words is "two hundred eighty-nine million, four hundred twenty-three thousand, four hundred ninety-six".

Divisors: 1 2 4 8 2179 4358 8716 16603 17432 33206 66412 132824 36177937 72355874 144711748 289423496