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40053001 = 53755717
BaseRepresentation
bin1001100011001…
…0100100001001
32210100220101111
42120302210021
540223144001
63550250321
7664305412
oct230624411
983326344
1040053001
112067745a
12114b69a1
1383b4a01
145468809
1537b2851
hex2632909

40053001 has 4 divisors (see below), whose sum is σ = 40808772. Its totient is φ = 39297232.

The previous prime is 40052993. The next prime is 40053019. The reversal of 40053001 is 10035004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27457600 + 12595401 = 5240^2 + 3549^2 .

It is a cyclic number.

It is not a de Polignac number, because 40053001 - 23 = 40052993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40053401) 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, 377806 + ... + 377911.

It is an arithmetic number, because the mean of its divisors is an integer number (10202193).

Almost surely, 240053001 is an apocalyptic number.

It is an amenable number.

40053001 is a deficient number, since it is larger than the sum of its proper divisors (755771).

40053001 is an equidigital number, since it uses as much as digits as its factorization.

40053001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755770.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 40053001 is about 6328.7440302164. The cubic root of 40053001 is about 342.1461733943.

Adding to 40053001 its reverse (10035004), we get a palindrome (50088005).

The spelling of 40053001 in words is "forty million, fifty-three thousand, one".

Divisors: 1 53 755717 40053001