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2147380 = 225195651
BaseRepresentation
bin1000001100010000110100
311001002122121
420030100310
51022204010
6114005324
724152404
oct10142064
94032577
102147380
1112373a4
12876844
135a2551
143dc804
152c63da
hex20c434

2147380 has 24 divisors (see below), whose sum is σ = 4747680. Its totient is φ = 813600.

The previous prime is 2147359. The next prime is 2147381. The reversal of 2147380 is 837412.

It is a super-2 number, since 2×21473802 = 9222481728800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2446 + ... + 3205.

It is an arithmetic number, because the mean of its divisors is an integer number (197820).

22147380 is an apocalyptic number.

2147380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2147380 is an abundant number, since it is smaller than the sum of its proper divisors (2600300).

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

2147380 is a wasteful number, since it uses less digits than its factorization.

2147380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5679 (or 5677 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2147380 is about 1465.3941449317. The cubic root of 2147380 is about 129.0138398308.

The spelling of 2147380 in words is "two million, one hundred forty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 5651 11302 22604 28255 56510 107369 113020 214738 429476 536845 1073690 2147380