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2890755 = 335721923
BaseRepresentation
bin1011000001110000000011
312102212101000
423001300003
51220001010
6141543043
733366600
oct13016003
95385330
102890755
1116a495a
12b74a83
137a2a0a
145536a7
153c17c0
hex2c1c03

2890755 has 96 divisors (see below), whose sum is σ = 6566400. Its totient is φ = 1197504.

The previous prime is 2890753. The next prime is 2890759. The reversal of 2890755 is 5570982.

It is not a de Polignac number, because 2890755 - 21 = 2890753 is a prime.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2890753) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 125674 + ... + 125696.

It is an arithmetic number, because the mean of its divisors is an integer number (68400).

22890755 is an apocalyptic number.

2890755 is an abundant number, since it is smaller than the sum of its proper divisors (3675645).

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

2890755 is a wasteful number, since it uses less digits than its factorization.

2890755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 2890755 is about 1700.2220443224. Note that the first 3 decimals coincide. The cubic root of 2890755 is about 142.4526158245.

The spelling of 2890755 in words is "two million, eight hundred ninety thousand, seven hundred fifty-five".

Divisors: 1 3 5 7 9 15 19 21 23 27 35 45 49 57 63 69 95 105 115 133 135 147 161 171 189 207 245 285 315 345 399 437 441 483 513 621 665 735 805 855 931 945 1035 1127 1197 1311 1323 1449 1995 2185 2205 2415 2565 2793 3059 3105 3381 3591 3933 4347 4655 5635 5985 6555 6615 7245 8379 9177 10143 11799 13965 15295 16905 17955 19665 21413 21735 25137 27531 30429 41895 45885 50715 58995 64239 82593 107065 125685 137655 152145 192717 321195 412965 578151 963585 2890755