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8065740 = 2235179751
BaseRepresentation
bin11110110001001011001100
3120011210010010
4132301023030
54031100430
6444513220
7125362164
oct36611314
916153103
108065740
114609a01
12284b810
131895337
1410dd5a4
15a94cb0
hex7b12cc

8065740 has 48 divisors (see below), whose sum is σ = 22740480. Its totient is φ = 2136000.

The previous prime is 8065727. The next prime is 8065751. The reversal of 8065740 is 475608.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8065698 and 8065707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10365 + ... + 11115.

It is an arithmetic number, because the mean of its divisors is an integer number (473760).

Almost surely, 28065740 is an apocalyptic number.

It is an amenable number.

8065740 is an abundant number, since it is smaller than the sum of its proper divisors (14674740).

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

8065740 is a wasteful number, since it uses less digits than its factorization.

8065740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 8065740 is about 2840.0246477804. The cubic root of 8065740 is about 200.5463395399.

The spelling of 8065740 in words is "eight million, sixty-five thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 179 358 537 716 751 895 1074 1502 1790 2148 2253 2685 3004 3580 3755 4506 5370 7510 9012 10740 11265 15020 22530 45060 134429 268858 403287 537716 672145 806574 1344290 1613148 2016435 2688580 4032870 8065740