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1419940 = 22570997
BaseRepresentation
bin101011010101010100100
32200010210101
411122222210
5330414230
650233444
715032524
oct5325244
92603711
101419940
1188a905
12585884
133a9402
1428d684
151d0aca
hex15aaa4

1419940 has 12 divisors (see below), whose sum is σ = 2981916. Its totient is φ = 567968.

The previous prime is 1419919. The next prime is 1419947. The reversal of 1419940 is 499141.

It can be written as a sum of positive squares in 2 ways, for example, as 236196 + 1183744 = 486^2 + 1088^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1419899 and 1419908.

It is not an unprimeable number, because it can be changed into a prime (1419947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35479 + ... + 35518.

It is an arithmetic number, because the mean of its divisors is an integer number (248493).

21419940 is an apocalyptic number.

1419940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1419940 is an abundant number, since it is smaller than the sum of its proper divisors (1561976).

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

1419940 is a wasteful number, since it uses less digits than its factorization.

1419940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71006 (or 71004 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1419940 is about 1191.6123530746. The cubic root of 1419940 is about 112.3975033534.

The spelling of 1419940 in words is "one million, four hundred nineteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 70997 141994 283988 354985 709970 1419940