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7065140 = 2252315359
BaseRepresentation
bin11010111100111000110100
3111021221112212
4122330320310
53302041030
6411232552
7114024035
oct32747064
914257485
107065140
113a96165
122448758
131604a74
14d1ca8c
15948595
hex6bce34

7065140 has 24 divisors (see below), whose sum is σ = 15482880. Its totient is φ = 2703008.

The previous prime is 7065127. The next prime is 7065143. The reversal of 7065140 is 415607.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7065143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7220 + ... + 8139.

It is an arithmetic number, because the mean of its divisors is an integer number (645120).

Almost surely, 27065140 is an apocalyptic number.

It is an amenable number.

7065140 is an abundant number, since it is smaller than the sum of its proper divisors (8417740).

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

7065140 is a wasteful number, since it uses less digits than its factorization.

7065140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15391 (or 15389 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 7065140 is about 2658.0331073935. The cubic root of 7065140 is about 191.8846601820.

The spelling of 7065140 in words is "seven million, sixty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 15359 30718 61436 76795 153590 307180 353257 706514 1413028 1766285 3532570 7065140