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3147380 = 225179257
BaseRepresentation
bin1100000000011001110100
312220220101122
430000121310
51301204010
6151243112
735516015
oct14003164
95826348
103147380
11185a745
121079498
13862772
145bd00c
15422855
hex300674

3147380 has 24 divisors (see below), whose sum is σ = 6999048. Its totient is φ = 1184768.

The previous prime is 3147349. The next prime is 3147421. The reversal of 3147380 is 837413.

It can be written as a sum of positive squares in 4 ways, for example, as 126736 + 3020644 = 356^2 + 1738^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4289 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (291627).

Almost surely, 23147380 is an apocalyptic number.

It is an amenable number.

3147380 is an abundant number, since it is smaller than the sum of its proper divisors (3851668).

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

3147380 is a wasteful number, since it uses less digits than its factorization.

3147380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9283 (or 9281 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 3147380 is about 1774.0856800053. The cubic root of 3147380 is about 146.5490678085.

The spelling of 3147380 in words is "three million, one hundred forty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 9257 18514 37028 46285 92570 157369 185140 314738 629476 786845 1573690 3147380