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2740990 = 25739157
BaseRepresentation
bin1010011101001011111110
312011020221011
422131023332
51200202430
6134425434
732204140
oct12351376
95136834
102740990
11160238a
12b0227a
1374c7b5
14514c90
1539222a
hex29d2fe

2740990 has 16 divisors (see below), whose sum is σ = 5638752. Its totient is φ = 939744.

The previous prime is 2740987. The next prime is 2740999. The reversal of 2740990 is 990472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740999) 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, 19509 + ... + 19648.

It is an arithmetic number, because the mean of its divisors is an integer number (352422).

22740990 is an apocalyptic number.

2740990 is an abundant number, since it is smaller than the sum of its proper divisors (2897762).

2740990 is a wasteful number, since it uses less digits than its factorization.

2740990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39171.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 2740990 is about 1655.5935491539. The cubic root of 2740990 is about 139.9487907948.

The spelling of 2740990 in words is "two million, seven hundred forty thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 39157 78314 195785 274099 391570 548198 1370495 2740990