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345448870 = 25132991631
BaseRepresentation
bin10100100101110…
…010000110100110
3220002000121202121
4110211302012212
51201413330440
654140100154
711363160364
oct2445620646
9802017677
10345448870
11167aa6938
129783465a
1356751820
1433c44634
15204da34a
hex149721a6

345448870 has 32 divisors (see below), whose sum is σ = 692737920. Its totient is φ = 123150720.

The previous prime is 345448853. The next prime is 345448871. The reversal of 345448870 is 78844543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345448871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42046 + ... + 49585.

It is an arithmetic number, because the mean of its divisors is an integer number (21648060).

Almost surely, 2345448870 is an apocalyptic number.

345448870 is an abundant number, since it is smaller than the sum of its proper divisors (347289050).

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

345448870 is a wasteful number, since it uses less digits than its factorization.

345448870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91680.

The product of its (nonzero) digits is 430080, while the sum is 43.

The square root of 345448870 is about 18586.2548675089. The cubic root of 345448870 is about 701.6619490157.

The spelling of 345448870 in words is "three hundred forty-five million, four hundred forty-eight thousand, eight hundred seventy".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 290 377 754 1885 3770 91631 183262 458155 916310 1191203 2382406 2657299 5314598 5956015 11912030 13286495 26572990 34544887 69089774 172724435 345448870