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145395041 = 1113217731
BaseRepresentation
bin10001010101010…
…00110101100001
3101010120211111112
420222220311201
5244210120131
622232153105
73413560151
oct1052506541
9333524445
10145395041
11750874a0
1240838795
1324178b8c
141544a761
15cb7002b
hex8aa8d61

145395041 has 4 divisors (see below), whose sum is σ = 158612784. Its totient is φ = 132177300.

The previous prime is 145395037. The next prime is 145395071. The reversal of 145395041 is 140593541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145395041 - 22 = 145395037 is a prime.

It is a super-2 number, since 2×1453950412 = 42279435894783362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145394989 and 145395007.

It is not an unprimeable number, because it can be changed into a prime (145395071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6608855 + ... + 6608876.

It is an arithmetic number, because the mean of its divisors is an integer number (39653196).

Almost surely, 2145395041 is an apocalyptic number.

145395041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145395041 is a deficient number, since it is larger than the sum of its proper divisors (13217743).

145395041 is a wasteful number, since it uses less digits than its factorization.

145395041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13217742.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 145395041 is about 12057.9866063949. The cubic root of 145395041 is about 525.8354540805.

The spelling of 145395041 in words is "one hundred forty-five million, three hundred ninety-five thousand, forty-one".

Divisors: 1 11 13217731 145395041