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2744980 = 225722801
BaseRepresentation
bin1010011110001010010100
312011110101221
422132022110
51200314410
6134500124
732221600
oct12361224
95143357
102744980
111605387
12b04644
13751564
14516500
153934da
hex29e294

2744980 has 36 divisors (see below), whose sum is σ = 6707988. Its totient is φ = 940800.

The previous prime is 2744969. The next prime is 2745011. The reversal of 2744980 is 894472.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1192464 + 1552516 = 1092^2 + 1246^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421 + ... + 2380.

It is an arithmetic number, because the mean of its divisors is an integer number (186333).

22744980 is an apocalyptic number.

2744980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2744980 is an abundant number, since it is smaller than the sum of its proper divisors (3963008).

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

2744980 is a wasteful number, since it uses less digits than its factorization.

2744980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2824 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2744980 is about 1656.7981168507. The cubic root of 2744980 is about 140.0166646829.

The spelling of 2744980 in words is "two million, seven hundred forty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 2801 5602 11204 14005 19607 28010 39214 56020 78428 98035 137249 196070 274498 392140 548996 686245 1372490 2744980