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1012380 = 223547359
BaseRepresentation
bin11110111001010011100
31220102201120
43313022130
5224344010
633410540
711414355
oct3671234
91812646
101012380
11631686
12409a50
13295a55
141c4d2c
1514ee70
hexf729c

1012380 has 48 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 263488.

The previous prime is 1012379. The next prime is 1012397. The reversal of 1012380 is 832101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 2641 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (60480).

21012380 is an apocalyptic number.

1012380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451520).

1012380 is an abundant number, since it is smaller than the sum of its proper divisors (1890660).

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

1012380 is a wasteful number, since it uses less digits than its factorization.

1012380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1012380 is about 1006.1709596286. The cubic root of 1012380 is about 100.4109753455.

Adding to 1012380 its reverse (832101), we get a palindrome (1844481).

The spelling of 1012380 in words is "one million, twelve thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 47 60 94 141 188 235 282 359 470 564 705 718 940 1077 1410 1436 1795 2154 2820 3590 4308 5385 7180 10770 16873 21540 33746 50619 67492 84365 101238 168730 202476 253095 337460 506190 1012380