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2634140 = 225131707
BaseRepresentation
bin1010000011000110011100
311221211100202
422003012130
51133243030
6132243032
731250465
oct12030634
94854322
102634140
11153a083
12a70478
13712c82
144c7d6c
15370745
hex28319c

2634140 has 12 divisors (see below), whose sum is σ = 5531736. Its totient is φ = 1053648.

The previous prime is 2634139. The next prime is 2634161. The reversal of 2634140 is 414362.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 131707 = 2634140 / (2 + 6 + 3 + 4 + 1 + 4 + 0).

It is an Ulam number.

It is a congruent number.

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, 65834 + ... + 65873.

It is an arithmetic number, because the mean of its divisors is an integer number (460978).

22634140 is an apocalyptic number.

2634140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2634140 is an abundant number, since it is smaller than the sum of its proper divisors (2897596).

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

2634140 is a wasteful number, since it uses less digits than its factorization.

2634140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131716 (or 131714 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2634140 is about 1623.0033887827. The cubic root of 2634140 is about 138.1061285411.

The spelling of 2634140 in words is "two million, six hundred thirty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 131707 263414 526828 658535 1317070 2634140