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2869380 = 2232519839
BaseRepresentation
bin1010111100100010000100
312101210001100
422330202010
51213310010
6141300100
733250353
oct12744204
95353040
102869380
11168a898
12b64630
13796077
1454999a
153ba2c0
hex2bc884

2869380 has 72 divisors (see below), whose sum is σ = 9172800. Its totient is φ = 724032.

The previous prime is 2869369. The next prime is 2869403. The reversal of 2869380 is 839682.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3001 + ... + 3839.

It is an arithmetic number, because the mean of its divisors is an integer number (127400).

22869380 is an apocalyptic number.

2869380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2869380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4586400).

2869380 is an abundant number, since it is smaller than the sum of its proper divisors (6303420).

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

2869380 is a wasteful number, since it uses less digits than its factorization.

2869380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2869380 is about 1693.9244375119. The cubic root of 2869380 is about 142.1006361933.

It can be divided in two parts, 2869 and 380, that added together give a square (3249 = 572).

The spelling of 2869380 in words is "two million, eight hundred sixty-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 171 180 190 228 285 342 380 570 684 839 855 1140 1678 1710 2517 3356 3420 4195 5034 7551 8390 10068 12585 15102 15941 16780 25170 30204 31882 37755 47823 50340 63764 75510 79705 95646 143469 151020 159410 191292 239115 286938 318820 478230 573876 717345 956460 1434690 2869380