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409920230 = 2540992023
BaseRepresentation
bin11000011011101…
…110001011100110
31001120100002211202
4120123232023212
51314414421410
6104402002502
713105156466
oct3033561346
91046302752
10409920230
111a0431155
12b5346432
1366c05a65
143c627ba6
1525ec2ca5
hex186ee2e6

409920230 has 8 divisors (see below), whose sum is σ = 737856432. Its totient is φ = 163968088.

The previous prime is 409920197. The next prime is 409920241. The reversal of 409920230 is 32029904.

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 = 409920193 and 409920202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20496002 + ... + 20496021.

It is an arithmetic number, because the mean of its divisors is an integer number (92232054).

Almost surely, 2409920230 is an apocalyptic number.

409920230 is a deficient number, since it is larger than the sum of its proper divisors (327936202).

409920230 is a wasteful number, since it uses less digits than its factorization.

409920230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40992030.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 409920230 is about 20246.4868557486. The cubic root of 409920230 is about 742.8477015037.

The spelling of 409920230 in words is "four hundred nine million, nine hundred twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 40992023 81984046 204960115 409920230