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345764580 = 22357353317
BaseRepresentation
bin10100100110111…
…111001011100100
3220002121122211120
4110212333023210
51202003431310
654150533540
711365644000
oct2446771344
9802548746
10345764580
111681a2057
12979672b0
1356832435
1433cc7700
152054db70
hex149bf2e4

345764580 has 192 divisors, whose sum is σ = 1153958400. Its totient is φ = 77296128.

The previous prime is 345764569. The next prime is 345764597. The reversal of 345764580 is 85467543.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1090582 + ... + 1090898.

It is an arithmetic number, because the mean of its divisors is an integer number (6010200).

Almost surely, 2345764580 is an apocalyptic number.

345764580 is a gapful number since it is divisible by the number (30) 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 345764580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576979200).

345764580 is an abundant number, since it is smaller than the sum of its proper divisors (808193820).

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

345764580 is a wasteful number, since it uses less digits than its factorization.

345764580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 345764580 is about 18594.7460321457. The cubic root of 345764580 is about 701.8756364463.

The spelling of 345764580 in words is "three hundred forty-five million, seven hundred sixty-four thousand, five hundred eighty".