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34780385025 = 3252124332
BaseRepresentation
bin100000011001000100…
…101000111100000001
310022202220102121211100
4200121010220330001
51032212234310100
623551120205013
72340614252301
oct403104507401
9108686377740
1034780385025
1113828691061
1268a7a69769
13338388c5a9
14197d29d601
15d8864e400
hex819128f01

34780385025 has 27 divisors (see below), whose sum is σ = 62300544969. Its totient is φ = 18548046720.

The previous prime is 34780384981. The next prime is 34780385041. The reversal of 34780385025 is 52058308743.

The square root of 34780385025 is 186495.

It is a perfect power (a square), and thus also a powerful number.

34780385025 is a `hidden beast` number, since 34 + 7 + 80 + 38 + 502 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9731625201 + 25048759824 = 98649^2 + 158268^2 .

It is not a de Polignac number, because 34780385025 - 229 = 34243514113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2791209 + ... + 2803641.

Almost surely, 234780385025 is an apocalyptic number.

34780385025 is the 186495-th square number.

34780385025 is the 93248-th centered octagonal number.

It is an amenable number.

34780385025 is a deficient number, since it is larger than the sum of its proper divisors (27520159944).

34780385025 is an frugal number, since it uses more digits than its factorization.

34780385025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24882 (or 12441 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 34780385025 in words is "thirty-four billion, seven hundred eighty million, three hundred eighty-five thousand, twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 12433 37299 62165 111897 186495 310825 559485 932475 2797425 154579489 463738467 772897445 1391215401 2318692335 3864487225 6956077005 11593461675 34780385025