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289667948 = 22238330389
BaseRepresentation
bin10001010000111…
…111101101101100
3202012001122201112
4101100333231230
51043123333243
644424331152
710115064653
oct2120775554
9665048645
10289667948
111395678a9
1281013ab8
134802106b
142a68419a
151a66c818
hex1143fb6c

289667948 has 12 divisors (see below), whose sum is σ = 507148320. Its totient is φ = 144768432.

The previous prime is 289667941. The next prime is 289667969. The reversal of 289667948 is 849766982.

It is not an unprimeable number, because it can be changed into a prime (289667941) 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, 5663 + ... + 24726.

It is an arithmetic number, because the mean of its divisors is an integer number (42262360).

Almost surely, 2289667948 is an apocalyptic number.

It is an amenable number.

289667948 is a deficient number, since it is larger than the sum of its proper divisors (217480372).

289667948 is a wasteful number, since it uses less digits than its factorization.

289667948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32776 (or 32774 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The square root of 289667948 is about 17019.6341911335. The cubic root of 289667948 is about 661.6578675879.

The spelling of 289667948 in words is "two hundred eighty-nine million, six hundred sixty-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 2383 4766 9532 30389 60778 121556 72416987 144833974 289667948