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2990724 = 22311139163
BaseRepresentation
bin1011011010001010000100
312121221111120
423122022010
51231200344
6144033540
734264212
oct13321204
95557446
102990724
111762a80
1210028b0
13809379
1457bcb2
153e1219
hex2da284

2990724 has 48 divisors (see below), whose sum is σ = 7714560. Its totient is φ = 894240.

The previous prime is 2990719. The next prime is 2990749. The reversal of 2990724 is 4270992.

2990724 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18267 + ... + 18429.

It is an arithmetic number, because the mean of its divisors is an integer number (160720).

22990724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2990724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3857280).

2990724 is an abundant number, since it is smaller than the sum of its proper divisors (4723836).

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

2990724 is a wasteful number, since it uses less digits than its factorization.

2990724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 2990724 is about 1729.3709839129. The cubic root of 2990724 is about 144.0761557049.

The spelling of 2990724 in words is "two million, nine hundred ninety thousand, seven hundred twenty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 139 163 278 326 417 489 556 652 834 978 1529 1668 1793 1956 3058 3586 4587 5379 6116 7172 9174 10758 18348 21516 22657 45314 67971 90628 135942 249227 271884 498454 747681 996908 1495362 2990724