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289541948 = 2272385487
BaseRepresentation
bin10001010000100…
…000111100111100
3202011211020212212
4101100200330330
51043110320243
644421515552
710114031423
oct2120407474
9664736785
10289541948
11139491173
1280b72bb8
1347ca88c7
142a6502ba
151a645318
hex11420f3c

289541948 has 6 divisors (see below), whose sum is σ = 506698416. Its totient is φ = 144770972.

The previous prime is 289541927. The next prime is 289541951. The reversal of 289541948 is 849145982.

It is a junction number, because it is equal to n+sod(n) for n = 289541896 and 289541905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36192740 + ... + 36192747.

It is an arithmetic number, because the mean of its divisors is an integer number (84449736).

Almost surely, 2289541948 is an apocalyptic number.

It is an amenable number.

289541948 is a deficient number, since it is larger than the sum of its proper divisors (217156468).

289541948 is a wasteful number, since it uses less digits than its factorization.

289541948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72385491 (or 72385489 counting only the distinct ones).

The product of its digits is 829440, while the sum is 50.

The square root of 289541948 is about 17015.9321813411. The cubic root of 289541948 is about 661.5619175150.

The spelling of 289541948 in words is "two hundred eighty-nine million, five hundred forty-one thousand, nine hundred forty-eight".

Divisors: 1 2 4 72385487 144770974 289541948