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1419138 = 232721609
BaseRepresentation
bin101011010011110000010
32200002200200
411122132002
5330403023
650230030
715030300
oct5323602
92602620
101419138
1188a246
12585316
133a8c36
1428d270
151d0743
hex15a782

1419138 has 36 divisors (see below), whose sum is σ = 3579030. Its totient is φ = 405216.

The previous prime is 1419137. The next prime is 1419157. The reversal of 1419138 is 8319141.

It can be written as a sum of positive squares in only one way, i.e., 815409 + 603729 = 903^2 + 777^2 .

It is not an unprimeable number, because it can be changed into a prime (1419137) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 78 + ... + 1686.

21419138 is an apocalyptic number.

1419138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1419138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1789515).

1419138 is an abundant number, since it is smaller than the sum of its proper divisors (2159892).

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

1419138 is a wasteful number, since it uses less digits than its factorization.

1419138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 1621 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1419138 is about 1191.2757867094. The cubic root of 1419138 is about 112.3763381928.

The spelling of 1419138 in words is "one million, four hundred nineteen thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 1609 3218 4827 9654 11263 14481 22526 28962 33789 67578 78841 101367 157682 202734 236523 473046 709569 1419138