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15050605001 = 34334384097
BaseRepresentation
bin11100000010001011…
…00000000111001001
31102211220100221200212
432001011200013021
5221310423330001
610525242410505
71041653013605
oct160105400711
942756327625
1015050605001
116423746333
122b00500a35
13155b186943
14a2ac38505
155d14ad7bb
hex3811601c9

15050605001 has 4 divisors (see below), whose sum is σ = 15054992532. Its totient is φ = 15046217472.

The previous prime is 15050604979. The next prime is 15050605021. The reversal of 15050605001 is 10050605051.

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 8681766976 + 6368838025 = 93176^2 + 79805^2 .

It is a cyclic number.

It is not a de Polignac number, because 15050605001 - 210 = 15050603977 is a prime.

It is a super-2 number, since 2×150506050012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15050605021) 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, 2188616 + ... + 2195481.

It is an arithmetic number, because the mean of its divisors is an integer number (3763748133).

Almost surely, 215050605001 is an apocalyptic number.

It is an amenable number.

15050605001 is a deficient number, since it is larger than the sum of its proper divisors (4387531).

15050605001 is an equidigital number, since it uses as much as digits as its factorization.

15050605001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4387530.

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 15050605001 in words is "fifteen billion, fifty million, six hundred five thousand, one".

Divisors: 1 3433 4384097 15050605001