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52445001 = 372497381
BaseRepresentation
bin1100100000001…
…1111101001001
310122200111000110
43020003331021
5101411220001
65112024533
71204526610
oct310037511
9118614013
1052445001
1127670784
1215692149
13ab3325b
146d72877
15490e3d6
hex3203f49

52445001 has 8 divisors (see below), whose sum is σ = 79916224. Its totient is φ = 29968560.

The previous prime is 52444981. The next prime is 52445033. The reversal of 52445001 is 10054425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52445001 - 25 = 52444969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 2497381 = 52445001 / (5 + 2 + 4 + 4 + 5 + 0 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52445101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1248670 + ... + 1248711.

It is an arithmetic number, because the mean of its divisors is an integer number (9989528).

Almost surely, 252445001 is an apocalyptic number.

It is an amenable number.

52445001 is a deficient number, since it is larger than the sum of its proper divisors (27471223).

52445001 is a wasteful number, since it uses less digits than its factorization.

52445001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497391.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 52445001 is about 7241.8920870170. The cubic root of 52445001 is about 374.3128179626.

Adding to 52445001 its reverse (10054425), we get a palindrome (62499426).

The spelling of 52445001 in words is "fifty-two million, four hundred forty-five thousand, one".

Divisors: 1 3 7 21 2497381 7492143 17481667 52445001