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2750780325 = 352227161573
BaseRepresentation
bin1010001111110101…
…1001001110100101
321002201002010012210
42203331121032211
521113144432300
61132542434033
7125111150466
oct24375311645
97081063183
102750780325
11119181aa77
12649292919
1334ab86087
141c1490d6d
15111766050
hexa3f593a5

2750780325 has 24 divisors (see below), whose sum is σ = 4568020128. Its totient is φ = 1460610880.

The previous prime is 2750780321. The next prime is 2750780371. The reversal of 2750780325 is 5230870572.

It is not a de Polignac number, because 2750780325 - 22 = 2750780321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750780321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63762 + ... + 97811.

It is an arithmetic number, because the mean of its divisors is an integer number (190334172).

Almost surely, 22750780325 is an apocalyptic number.

2750780325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2750780325 is a deficient number, since it is larger than the sum of its proper divisors (1817239803).

2750780325 is a wasteful number, since it uses less digits than its factorization.

2750780325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161813 (or 161808 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 2750780325 is about 52447.8819877409. The cubic root of 2750780325 is about 1401.1521680285.

The spelling of 2750780325 in words is "two billion, seven hundred fifty million, seven hundred eighty thousand, three hundred twenty-five".

Divisors: 1 3 5 15 25 75 227 681 1135 3405 5675 17025 161573 484719 807865 2423595 4039325 12117975 36677071 110031213 183385355 550156065 916926775 2750780325