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45408401 = 64770183
BaseRepresentation
bin1010110100111…
…0000010010001
310011102222121122
42231032002101
543111032101
64301132025
71060652003
oct255160221
9104388548
1045408401
11236a5005
121325a015
13953b49c
146060373
153ebe51b
hex2b4e091

45408401 has 4 divisors (see below), whose sum is σ = 45479232. Its totient is φ = 45337572.

The previous prime is 45408383. The next prime is 45408413. The reversal of 45408401 is 10480454.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10480454 = 25240227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-45408401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45408431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34445 + ... + 35738.

It is an arithmetic number, because the mean of its divisors is an integer number (11369808).

Almost surely, 245408401 is an apocalyptic number.

It is an amenable number.

45408401 is a deficient number, since it is larger than the sum of its proper divisors (70831).

45408401 is an equidigital number, since it uses as much as digits as its factorization.

45408401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70830.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 45408401 is about 6738.5755913249. The cubic root of 45408401 is about 356.7621202966.

Adding to 45408401 its reverse (10480454), we get a palindrome (55888855).

The spelling of 45408401 in words is "forty-five million, four hundred eight thousand, four hundred one".

Divisors: 1 647 70183 45408401