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409234080 = 25352929399
BaseRepresentation
bin11000011001000…
…110101010100000
31001112001020121210
4120121012222200
51314230442310
6104335150120
713066301163
oct3031065240
91045036553
10409234080
111a0002692
12b5075340
1366a25658
143c4c9ada
1525dd9820
hex18646aa0

409234080 has 96 divisors (see below), whose sum is σ = 1333584000. Its totient is φ = 105362432.

The previous prime is 409234061. The next prime is 409234087. The reversal of 409234080 is 80432904.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (409234087) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 780 + ... + 28619.

It is an arithmetic number, because the mean of its divisors is an integer number (13891500).

Almost surely, 2409234080 is an apocalyptic number.

409234080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 409234080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666792000).

409234080 is an abundant number, since it is smaller than the sum of its proper divisors (924349920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409234080 is a wasteful number, since it uses less digits than its factorization.

409234080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29446 (or 29438 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 409234080 is about 20229.5348438861. The cubic root of 409234080 is about 742.4329951212.

Adding to 409234080 its reverse (80432904), we get a palindrome (489666984).

The spelling of 409234080 in words is "four hundred nine million, two hundred thirty-four thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 29 30 32 40 48 58 60 80 87 96 116 120 145 160 174 232 240 290 348 435 464 480 580 696 870 928 1160 1392 1740 2320 2784 3480 4640 6960 13920 29399 58798 88197 117596 146995 176394 235192 293990 352788 440985 470384 587980 705576 852571 881970 940768 1175960 1411152 1705142 1763940 2351920 2557713 2822304 3410284 3527880 4262855 4703840 5115426 6820568 7055760 8525710 10230852 12788565 13641136 14111520 17051420 20461704 25577130 27282272 34102840 40923408 51154260 68205680 81846816 102308520 136411360 204617040 409234080