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405089924 = 22139728579
BaseRepresentation
bin11000001001010…
…010111010000100
31001020020200220112
4120021102322010
51312200334144
6104110252152
713016131121
oct3011227204
91036220815
10405089924
11198732068
12b37b7058
1365c042a5
143bb2b748
152586b99e
hex18252e84

405089924 has 12 divisors (see below), whose sum is σ = 714008400. Its totient is φ = 201087528.

The previous prime is 405089903. The next prime is 405089939. The reversal of 405089924 is 429980504.

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, 363734 + ... + 364845.

It is an arithmetic number, because the mean of its divisors is an integer number (59500700).

Almost surely, 2405089924 is an apocalyptic number.

It is an amenable number.

405089924 is a deficient number, since it is larger than the sum of its proper divisors (308918476).

405089924 is a wasteful number, since it uses less digits than its factorization.

405089924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728722 (or 728720 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 405089924 is about 20126.8458532379. The cubic root of 405089924 is about 739.9183766801.

The spelling of 405089924 in words is "four hundred five million, eighty-nine thousand, nine hundred twenty-four".

Divisors: 1 2 4 139 278 556 728579 1457158 2914316 101272481 202544962 405089924