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406980830 = 25337112073
BaseRepresentation
bin11000010000100…
…000100011011110
31001100210202202002
4120100200203132
51313141341310
6104215002302
713041165014
oct3020404336
91040722662
10406980830
111998037a3
12b4369392
1366416b79
143c0a08b4
1525ae1da5
hex184208de

406980830 has 16 divisors (see below), whose sum is σ = 732843504. Its totient is φ = 162730560.

The previous prime is 406980823. The next prime is 406980839. The reversal of 406980830 is 38089604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406980839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27674 + ... + 39746.

It is an arithmetic number, because the mean of its divisors is an integer number (45802719).

Almost surely, 2406980830 is an apocalyptic number.

406980830 is a deficient number, since it is larger than the sum of its proper divisors (325862674).

406980830 is a wasteful number, since it uses less digits than its factorization.

406980830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15451.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 406980830 is about 20173.7658854265. The cubic root of 406980830 is about 741.0678702291.

The spelling of 406980830 in words is "four hundred six million, nine hundred eighty thousand, eight hundred thirty".

Divisors: 1 2 5 10 3371 6742 12073 16855 24146 33710 60365 120730 40698083 81396166 203490415 406980830