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345344080 = 24523187687
BaseRepresentation
bin10100100101011…
…000100001010000
3220001211022000111
4110211120201100
51201402002310
654133531104
711362243024
oct2445304120
9801738014
10345344080
11167a35134
12977a3a94
1356715c13
1433c18384
15204b928a
hex14958850

345344080 has 40 divisors (see below), whose sum is σ = 837839232. Its totient is φ = 132130944.

The previous prime is 345344053. The next prime is 345344081. The reversal of 345344080 is 80443543.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345344081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92004 + ... + 95683.

Almost surely, 2345344080 is an apocalyptic number.

It is an amenable number.

345344080 is an abundant number, since it is smaller than the sum of its proper divisors (492495152).

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

345344080 is a wasteful number, since it uses less digits than its factorization.

345344080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187723 (or 187717 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

The square root of 345344080 is about 18583.4356349949. The cubic root of 345344080 is about 701.5909934195.

The spelling of 345344080 in words is "three hundred forty-five million, three hundred forty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 187687 375374 750748 938435 1501496 1876870 3002992 3753740 4316801 7507480 8633602 15014960 17267204 21584005 34534408 43168010 69068816 86336020 172672040 345344080