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345424008040 = 23531327589777
BaseRepresentation
bin1010000011011001110…
…00000001001101101000
31020000121012012201111021
411001230320001031220
521124412021224130
6422404031142224
733645633423556
oct5015470011550
91200535181437
10345424008040
11123547935911
1256b41974974
132675b838b87
1412a0bc24bd6
158eba45437a
hex506ce01368

345424008040 has 32 divisors (see below), whose sum is σ = 779687126280. Its totient is φ = 137728161792.

The previous prime is 345424008023. The next prime is 345424008053. The reversal of 345424008040 is 40800424543.

It can be written as a sum of positive squares in 4 ways, for example, as 244646965924 + 100777042116 = 494618^2 + 317454^2 .

It is a junction number, because it is equal to n+sod(n) for n = 345424007987 and 345424008005.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13782369 + ... + 13807408.

Almost surely, 2345424008040 is an apocalyptic number.

It is an amenable number.

345424008040 is an abundant number, since it is smaller than the sum of its proper divisors (434263118240).

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

345424008040 is a wasteful number, since it uses less digits than its factorization.

345424008040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27590101 (or 27590097 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

The spelling of 345424008040 in words is "three hundred forty-five billion, four hundred twenty-four million, eight thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 313 626 1252 1565 2504 3130 6260 12520 27589777 55179554 110359108 137948885 220718216 275897770 551795540 1103591080 8635600201 17271200402 34542400804 43178001005 69084801608 86356002010 172712004020 345424008040