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1349980 = 22567499
BaseRepresentation
bin101001001100101011100
32112120211021
411021211130
5321144410
644533524
714321542
oct5114534
92476737
101349980
11842295
125512a4
13383608
14271d92
151b9eda
hex14995c

1349980 has 12 divisors (see below), whose sum is σ = 2835000. Its totient is φ = 539984.

The previous prime is 1349977. The next prime is 1349993. The reversal of 1349980 is 899431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33730 + ... + 33769.

It is an arithmetic number, because the mean of its divisors is an integer number (236250).

21349980 is an apocalyptic number.

1349980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1349980 is an abundant number, since it is smaller than the sum of its proper divisors (1485020).

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

1349980 is a wasteful number, since it uses less digits than its factorization.

1349980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67508 (or 67506 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 1349980 is about 1161.8863972007. The cubic root of 1349980 is about 110.5203991741.

The spelling of 1349980 in words is "one million, three hundred forty-nine thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 67499 134998 269996 337495 674990 1349980