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8160940 = 225537699
BaseRepresentation
bin11111001000011010101100
3120100121201001
4133020122230
54042122230
6450530044
7126236554
oct37103254
916317631
108160940
114674487
122896924
1318c9778
141126164
15ab30ca
hex7c86ac

8160940 has 24 divisors (see below), whose sum is σ = 17463600. Its totient is φ = 3202368.

The previous prime is 8160931. The next prime is 8160941. The reversal of 8160940 is 490618.

It is a junction number, because it is equal to n+sod(n) for n = 8160899 and 8160908.

It is not an unprimeable number, because it can be changed into a prime (8160941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2790 + ... + 4909.

It is an arithmetic number, because the mean of its divisors is an integer number (727650).

Almost surely, 28160940 is an apocalyptic number.

It is an amenable number.

8160940 is an abundant number, since it is smaller than the sum of its proper divisors (9302660).

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

8160940 is a wasteful number, since it uses less digits than its factorization.

8160940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7761 (or 7759 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8160940 is about 2856.7358995889. The cubic root of 8160940 is about 201.3322722144.

The spelling of 8160940 in words is "eight million, one hundred sixty thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 7699 15398 30796 38495 76990 153980 408047 816094 1632188 2040235 4080470 8160940