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2939380 = 225475359
BaseRepresentation
bin1011001101100111110100
312112100001221
423031213310
51223030010
6143000124
733661423
oct13154764
95470057
102939380
111728444
12b99044
137bbba2
145672ba
153d0dda
hex2cd9f4

2939380 has 48 divisors (see below), whose sum is σ = 6531840. Its totient is φ = 1109888.

The previous prime is 2939371. The next prime is 2939393. The reversal of 2939380 is 839392.

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 15 ways as a sum of consecutive naturals, for example, 49791 + ... + 49849.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

22939380 is an apocalyptic number.

2939380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2939380 is an abundant number, since it is smaller than the sum of its proper divisors (3592460).

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

2939380 is a wasteful number, since it uses less digits than its factorization.

2939380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 2939380 is about 1714.4620147440. The cubic root of 2939380 is about 143.2469042070.

It can be divided in two parts, 293 and 9380, that multiplied together give a triangular number (2748340 = T2344).

The spelling of 2939380 in words is "two million, nine hundred thirty-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 47 53 59 94 106 118 188 212 235 236 265 295 470 530 590 940 1060 1180 2491 2773 3127 4982 5546 6254 9964 11092 12455 12508 13865 15635 24910 27730 31270 49820 55460 62540 146969 293938 587876 734845 1469690 2939380