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2997390 = 2351131293
BaseRepresentation
bin1011011011110010001110
312122021122110
423123302032
51231404030
6144124450
734322514
oct13336216
95567573
102997390
111767a90
121006726
1380c406
145804b4
153e31b0
hex2dbc8e

2997390 has 64 divisors (see below), whose sum is σ = 8128512. Its totient is φ = 700800.

The previous prime is 2997373. The next prime is 2997409. The reversal of 2997390 is 937992.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 10084 + ... + 10376.

It is an arithmetic number, because the mean of its divisors is an integer number (127008).

22997390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2997390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4064256).

2997390 is an abundant number, since it is smaller than the sum of its proper divisors (5131122).

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

2997390 is a wasteful number, since it uses less digits than its factorization.

2997390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 2997390 is about 1731.2972015226. The cubic root of 2997390 is about 144.1831196580.

The spelling of 2997390 in words is "two million, nine hundred ninety-seven thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 30 31 33 55 62 66 93 110 155 165 186 293 310 330 341 465 586 682 879 930 1023 1465 1705 1758 2046 2930 3223 3410 4395 5115 6446 8790 9083 9669 10230 16115 18166 19338 27249 32230 45415 48345 54498 90830 96690 99913 136245 199826 272490 299739 499565 599478 999130 1498695 2997390