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2572940 = 2251031249
BaseRepresentation
bin1001110100001010001100
311211201102002
421310022030
51124313230
6131051432
730604166
oct11641214
94751362
102572940
1114a80a7
12a40b78
136c1166
144ad936
1535c545
hex27428c

2572940 has 24 divisors (see below), whose sum is σ = 5460000. Its totient is φ = 1018368.

The previous prime is 2572939. The next prime is 2572949. The reversal of 2572940 is 492752.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2572949) 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, 1436 + ... + 2684.

It is an arithmetic number, because the mean of its divisors is an integer number (227500).

22572940 is an apocalyptic number.

2572940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2572940 is an abundant number, since it is smaller than the sum of its proper divisors (2887060).

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

2572940 is a wasteful number, since it uses less digits than its factorization.

2572940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361 (or 1359 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2572940 is about 1604.0386529009. The cubic root of 2572940 is about 137.0281789763.

The spelling of 2572940 in words is "two million, five hundred seventy-two thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 1249 2060 2498 4996 6245 12490 24980 128647 257294 514588 643235 1286470 2572940