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405061430 = 2540506143
BaseRepresentation
bin11000001001001…
…011111100110110
31001020012020211012
4120021023330312
51312143431210
6104105512222
713015652054
oct3011137466
91036166735
10405061430
11198712714
12b37a2672
1365bc4327
143bb211d4
1525863305
hex1824bf36

405061430 has 8 divisors (see below), whose sum is σ = 729110592. Its totient is φ = 162024568.

The previous prime is 405061403. The next prime is 405061439. The reversal of 405061430 is 34160504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 405061396 and 405061405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405061439) 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, 20253062 + ... + 20253081.

It is an arithmetic number, because the mean of its divisors is an integer number (91138824).

Almost surely, 2405061430 is an apocalyptic number.

405061430 is a deficient number, since it is larger than the sum of its proper divisors (324049162).

405061430 is a wasteful number, since it uses less digits than its factorization.

405061430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40506150.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 405061430 is about 20126.1379802485. The cubic root of 405061430 is about 739.9010276692.

The spelling of 405061430 in words is "four hundred five million, sixty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 40506143 81012286 202530715 405061430