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75113825 = 523004553
BaseRepresentation
bin1000111101000…
…10010101100001
312020100011210112
410132202111201
5123212120300
611241541105
71601312513
oct436422541
9166304715
1075113825
1139444146
12211a4795
131273c367
149d93bb3
1568dae35
hex47a2561

75113825 has 6 divisors (see below), whose sum is σ = 93141174. Its totient is φ = 60091040.

The previous prime is 75113807. The next prime is 75113833. The reversal of 75113825 is 52831157.

It can be written as a sum of positive squares in 3 ways, for example, as 187489 + 74926336 = 433^2 + 8656^2 .

It is not a de Polignac number, because 75113825 - 214 = 75097441 is a prime.

It is a super-2 number, since 2×751138252 = 11284173412261250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 75113791 and 75113800.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1502252 + ... + 1502301.

It is an arithmetic number, because the mean of its divisors is an integer number (15523529).

Almost surely, 275113825 is an apocalyptic number.

It is an amenable number.

75113825 is a deficient number, since it is larger than the sum of its proper divisors (18027349).

75113825 is a wasteful number, since it uses less digits than its factorization.

75113825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004563 (or 3004558 counting only the distinct ones).

The product of its digits is 8400, while the sum is 32.

The square root of 75113825 is about 8666.8232357652. The cubic root of 75113825 is about 421.9295664216.

The spelling of 75113825 in words is "seventy-five million, one hundred thirteen thousand, eight hundred twenty-five".

Divisors: 1 5 25 3004553 15022765 75113825