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8739140 = 225436957
BaseRepresentation
bin100001010101…
…100101000100
3121102222211212
4201111211010
54214123030
6511150552
7134165354
oct41254504
917388755
108739140
114a29933
122b15458
131a6c9b7
141236b64
15b79595
hex855944

8739140 has 12 divisors (see below), whose sum is σ = 18352236. Its totient is φ = 3495648.

The previous prime is 8739127. The next prime is 8739163. The reversal of 8739140 is 419378.

8739140 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6927424 + 1811716 = 2632^2 + 1346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8739097 and 8739106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218459 + ... + 218498.

It is an arithmetic number, because the mean of its divisors is an integer number (1529353).

Almost surely, 28739140 is an apocalyptic number.

It is an amenable number.

8739140 is an abundant number, since it is smaller than the sum of its proper divisors (9613096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8739140 is a wasteful number, since it uses less digits than its factorization.

8739140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436966 (or 436964 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 8739140 is about 2956.2036465711. The cubic root of 8739140 is about 205.9789779660.

The spelling of 8739140 in words is "eight million, seven hundred thirty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 436957 873914 1747828 2184785 4369570 8739140