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1420916 = 227311637
BaseRepresentation
bin101011010111001110100
32200012010112
411122321310
5330432131
650242152
715035420
oct5327164
92605115
101420916
11890612
12586358
133a99a3
1428db80
151d102b
hex15ae74

1420916 has 24 divisors (see below), whose sum is σ = 2935296. Its totient is φ = 588960.

The previous prime is 1420901. The next prime is 1420919. The reversal of 1420916 is 6190241.

It is a happy number.

1420916 is nontrivially palindromic in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 1420891 and 1420900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50 + ... + 1686.

It is an arithmetic number, because the mean of its divisors is an integer number (122304).

21420916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467648).

1420916 is an abundant number, since it is smaller than the sum of its proper divisors (1514380).

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

1420916 is a wasteful number, since it uses less digits than its factorization.

1420916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1420916 is about 1192.0218118810. The cubic root of 1420916 is about 112.4232497086.

The spelling of 1420916 in words is "one million, four hundred twenty thousand, nine hundred sixteen".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 1637 3274 6548 11459 22918 45836 50747 101494 202988 355229 710458 1420916