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50445001 = 172967353
BaseRepresentation
bin1100000001101…
…1101011001001
310111220212112101
43000123223021
5100403220001
65001113401
71151526655
oct300335311
9114825471
1050445001
1126525092
1214a88861
13a5b2b19
1469b1a65
154666a01
hex301bac9

50445001 has 4 divisors (see below), whose sum is σ = 53412372. Its totient is φ = 47477632.

The previous prime is 50444983. The next prime is 50445061. The reversal of 50445001 is 10054405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10054405 = 52010881.

It can be written as a sum of positive squares in 2 ways, for example, as 35390601 + 15054400 = 5949^2 + 3880^2 .

It is a cyclic number.

It is not a de Polignac number, because 50445001 - 223 = 42056393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50445001.

It is not an unprimeable number, because it can be changed into a prime (50445061) 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, 1483660 + ... + 1483693.

It is an arithmetic number, because the mean of its divisors is an integer number (13353093).

Almost surely, 250445001 is an apocalyptic number.

It is an amenable number.

50445001 is a deficient number, since it is larger than the sum of its proper divisors (2967371).

50445001 is a wasteful number, since it uses less digits than its factorization.

50445001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967370.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 50445001 is about 7102.4644314491. The cubic root of 50445001 is about 369.4928552303.

Adding to 50445001 its reverse (10054405), we get a palindrome (60499406).

The spelling of 50445001 in words is "fifty million, four hundred forty-five thousand, one".

Divisors: 1 17 2967353 50445001