Search a number
-
+
7212130321313 = 41672625456979
BaseRepresentation
bin110100011110011010001…
…1101110100001110100001
3221112110202202120211110102
41220330310131310032201
51421130420330240223
623201112410312145
71343026212150401
oct150746435641641
927473682524412
107212130321313
112330713601485
12985913a28655
13404140aab108
141ad0d737a801
15c790da87928
hex68f347743a1

7212130321313 has 8 divisors (see below), whose sum is σ = 7498305134880. Its totient is φ = 6931206421920.

The previous prime is 7212130321303. The next prime is 7212130321327. The reversal of 7212130321313 is 3131230312127.

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

It is a cyclic number.

It is not a de Polignac number, because 7212130321313 - 28 = 7212130321057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7212130321303) 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, 1312725743 + ... + 1312731236.

It is an arithmetic number, because the mean of its divisors is an integer number (937288141860).

Almost surely, 27212130321313 is an apocalyptic number.

It is an amenable number.

7212130321313 is a deficient number, since it is larger than the sum of its proper divisors (286174813567).

7212130321313 is a wasteful number, since it uses less digits than its factorization.

7212130321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625457087.

The product of its (nonzero) digits is 4536, while the sum is 29.

The spelling of 7212130321313 in words is "seven trillion, two hundred twelve billion, one hundred thirty million, three hundred twenty-one thousand, three hundred thirteen".

Divisors: 1 41 67 2747 2625456979 107643736139 175905617593 7212130321313