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405230315 = 5753218453
BaseRepresentation
bin11000001001110…
…101001011101011
31001020111211111012
4120021311023223
51312214332230
6104113254135
713020254330
oct3011651353
91036454435
10405230315
11198818596
12b386434b
1365c53169
143bb66987
1525898395
hex182752eb

405230315 has 16 divisors (see below), whose sum is σ = 566232768. Its totient is φ = 272628096.

The previous prime is 405230297. The next prime is 405230333. The reversal of 405230315 is 513032504.

It is an interprime number because it is at equal distance from previous prime (405230297) and next prime (405230333).

It is a cyclic number.

It is not a de Polignac number, because 405230315 - 218 = 404968171 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107372 + ... + 111081.

It is an arithmetic number, because the mean of its divisors is an integer number (35389548).

Almost surely, 2405230315 is an apocalyptic number.

405230315 is a deficient number, since it is larger than the sum of its proper divisors (161002453).

405230315 is a wasteful number, since it uses less digits than its factorization.

405230315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218518.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 405230315 is about 20130.3332063828. Note that the first 3 decimals coincide. The cubic root of 405230315 is about 740.0038440268.

Adding to 405230315 its reverse (513032504), we get a palindrome (918262819).

The spelling of 405230315 in words is "four hundred five million, two hundred thirty thousand, three hundred fifteen".

Divisors: 1 5 7 35 53 265 371 1855 218453 1092265 1529171 7645855 11578009 57890045 81046063 405230315