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8182740 = 2235136379
BaseRepresentation
bin11111001101101111010100
3120101201121110
4133031233110
54043321430
6451215020
7126360246
oct37155724
916351543
108182740
1146898a5
1228a7470
131906677
141130096
15ab97b0
hex7cdbd4

8182740 has 24 divisors (see below), whose sum is σ = 22911840. Its totient is φ = 2182048.

The previous prime is 8182709. The next prime is 8182753. The reversal of 8182740 is 472818.

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 = 8182698 and 8182707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68130 + ... + 68249.

It is an arithmetic number, because the mean of its divisors is an integer number (954660).

Almost surely, 28182740 is an apocalyptic number.

It is an amenable number.

8182740 is an abundant number, since it is smaller than the sum of its proper divisors (14729100).

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

8182740 is a wasteful number, since it uses less digits than its factorization.

8182740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136391 (or 136389 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 8182740 is about 2860.5488983760. The cubic root of 8182740 is about 201.5113831678.

The spelling of 8182740 in words is "eight million, one hundred eighty-two thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 136379 272758 409137 545516 681895 818274 1363790 1636548 2045685 2727580 4091370 8182740