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43001313001 = 136731456703
BaseRepresentation
bin101000000011000100…
…111111011011101001
311002222211120000221021
4220003010333123221
51201031314004001
631430551212441
73051420062323
oct500304773351
9132884500837
1043001313001
1117267135a09
128401077121
134093b0660a
14211d036613
1511ba239ba1
hexa0313f6e9

43001313001 has 4 divisors (see below), whose sum is σ = 43032771072. Its totient is φ = 42969854932.

The previous prime is 43001312993. The next prime is 43001313023. The reversal of 43001313001 is 10031310034.

43001313001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 43001313001 - 23 = 43001312993 is a prime.

It is a super-2 number, since 2×430013130012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43001313041) 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, 15726985 + ... + 15729718.

It is an arithmetic number, because the mean of its divisors is an integer number (10758192768).

Almost surely, 243001313001 is an apocalyptic number.

It is an amenable number.

43001313001 is a deficient number, since it is larger than the sum of its proper divisors (31458071).

43001313001 is a wasteful number, since it uses less digits than its factorization.

43001313001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31458070.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 43001313001 its reverse (10031310034), we get a palindrome (53032623035).

The spelling of 43001313001 in words is "forty-three billion, one million, three hundred thirteen thousand, one".

Divisors: 1 1367 31456703 43001313001