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2570740 = 225177561
BaseRepresentation
bin1001110011100111110100
311211121101121
421303213310
51124230430
6131033324
730564604
oct11634764
94747347
102570740
1114a6487
12a3b844
136c0163
144acc04
1535ba7a
hex2739f4

2570740 has 24 divisors (see below), whose sum is σ = 5716872. Its totient is φ = 967680.

The previous prime is 2570717. The next prime is 2570749. The reversal of 2570740 is 470752.

2570740 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 272484 + 2298256 = 522^2 + 1516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2570749) 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, 3441 + ... + 4120.

It is an arithmetic number, because the mean of its divisors is an integer number (238203).

22570740 is an apocalyptic number.

2570740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2570740 is an abundant number, since it is smaller than the sum of its proper divisors (3146132).

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

2570740 is a wasteful number, since it uses less digits than its factorization.

2570740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7587 (or 7585 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 2570740 is about 1603.3527372353. The cubic root of 2570740 is about 136.9891123889.

The spelling of 2570740 in words is "two million, five hundred seventy thousand, seven hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 7561 15122 30244 37805 75610 128537 151220 257074 514148 642685 1285370 2570740