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13210220051 = 715112497843
BaseRepresentation
bin11000100110110001…
…11111011000010011
31021002122100201011022
430103120333120103
5204023304020201
610022500510055
7645235006040
oct142330773023
937078321138
1013210220051
115669908936
1226880ab32b
131326ac6a72
148d464c1c7
15524b2941b
hex31363f613

13210220051 has 8 divisors (see below), whose sum is σ = 15197378304. Its totient is φ = 11248057800.

The previous prime is 13210220047. The next prime is 13210220147. The reversal of 13210220051 is 15002201231.

It is a happy number.

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

It is not a de Polignac number, because 13210220051 - 22 = 13210220047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13210220251) 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, 6247865 + ... + 6249978.

It is an arithmetic number, because the mean of its divisors is an integer number (1899672288).

Almost surely, 213210220051 is an apocalyptic number.

13210220051 is a deficient number, since it is larger than the sum of its proper divisors (1987158253).

13210220051 is a wasteful number, since it uses less digits than its factorization.

13210220051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12498001.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 13210220051 its reverse (15002201231), we get a palindrome (28212421282).

The spelling of 13210220051 in words is "thirteen billion, two hundred ten million, two hundred twenty thousand, fifty-one".

Divisors: 1 7 151 1057 12497843 87484901 1887174293 13210220051