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405044230 = 2540504423
BaseRepresentation
bin11000001001000…
…111110000000110
31001020011101020011
4120021013300012
51312142403410
6104105300434
713015550653
oct3011076006
91036141204
10405044230
111987007a8
12b379471a
1365bb9556
143bb18c2a
152585d18a
hex18247c06

405044230 has 8 divisors (see below), whose sum is σ = 729079632. Its totient is φ = 162017688.

The previous prime is 405044197. The next prime is 405044257. The reversal of 405044230 is 32440504.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20252202 + ... + 20252221.

It is an arithmetic number, because the mean of its divisors is an integer number (91134954).

Almost surely, 2405044230 is an apocalyptic number.

405044230 is a deficient number, since it is larger than the sum of its proper divisors (324035402).

405044230 is a wasteful number, since it uses less digits than its factorization.

405044230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40504430.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 405044230 is about 20125.7106706819. The cubic root of 405044230 is about 739.8905547904.

Adding to 405044230 its reverse (32440504), we get a palindrome (437484734).

The spelling of 405044230 in words is "four hundred five million, forty-four thousand, two hundred thirty".

Divisors: 1 2 5 10 40504423 81008846 202522115 405044230