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2754390 = 23591813
BaseRepresentation
bin1010100000011101010110
312011221022110
422200131112
51201120030
6135011450
732261202
oct12403526
95157273
102754390
111611461
12b09b86
13755922
14519b02
153961b0
hex2a0756

2754390 has 16 divisors (see below), whose sum is σ = 6610608. Its totient is φ = 734496.

The previous prime is 2754379. The next prime is 2754397. The reversal of 2754390 is 934572.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 91813 = 2754390 / (2 + 7 + 5 + 4 + 3 + 9 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2754397) 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, 45877 + ... + 45936.

It is an arithmetic number, because the mean of its divisors is an integer number (413163).

22754390 is an apocalyptic number.

2754390 is an abundant number, since it is smaller than the sum of its proper divisors (3856218).

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

2754390 is a wasteful number, since it uses less digits than its factorization.

2754390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91823.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 2754390 is about 1659.6355021510. The cubic root of 2754390 is about 140.1764781259.

The spelling of 2754390 in words is "two million, seven hundred fifty-four thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 91813 183626 275439 459065 550878 918130 1377195 2754390