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1914980 = 225232181
BaseRepresentation
bin111010011100001100100
310121021212012
413103201210
5442234410
6105013352
722164014
oct7234144
93537765
101914980
111098831
12784258
13520832
1437bc44
1527c605
hex1d3864

1914980 has 36 divisors (see below), whose sum is σ = 4227132. Its totient is φ = 728640.

The previous prime is 1914971. The next prime is 1915007. The reversal of 1914980 is 894191.

It can be written as a sum of positive squares in 2 ways, for example, as 256036 + 1658944 = 506^2 + 1288^2 .

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, 10490 + ... + 10670.

21914980 is an apocalyptic number.

1914980 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 1914980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2113566).

1914980 is an abundant number, since it is smaller than the sum of its proper divisors (2312152).

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

1914980 is a wasteful number, since it uses less digits than its factorization.

1914980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1914980 is about 1383.8280239972. The cubic root of 1914980 is about 124.1808841179.

The spelling of 1914980 in words is "one million, nine hundred fourteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 23 46 92 115 181 230 362 460 529 724 905 1058 1810 2116 2645 3620 4163 5290 8326 10580 16652 20815 41630 83260 95749 191498 382996 478745 957490 1914980