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BaseRepresentation
bin10101100010101111111110…
…00000110001011000010001
320012201212012202122220001001
422301113333000301120101
522202131333002344141
6244431023425542001
712656422546633534
oct1261277700613021
9205655182586031
1047373472699921
1114104a82351615
1253913681a4901
1320583b7767854
14b9ac6175ca1b
1557245d003a31
hex2b15ff031611

47373472699921 has 3 divisors (see below), whose sum is σ = 47373479582761. Its totient is φ = 47373465817082.

The previous prime is 47373472699909. The next prime is 47373472699939. The reversal of 47373472699921 is 12999627437374.

The square root of 47373472699921 is 6882839.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 47373472699921 - 221 = 47373470602769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47373472699321) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3441420 + ... + 10324258.

Almost surely, 247373472699921 is an apocalyptic number.

47373472699921 is the 6882839-th square number.

47373472699921 is the 3441420-th centered octagonal number.

It is an amenable number.

47373472699921 is a deficient number, since it is larger than the sum of its proper divisors (6882840).

47373472699921 is an frugal number, since it uses more digits than its factorization.

47373472699921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13765678 (or 6882839 counting only the distinct ones).

The product of its digits is 864162432, while the sum is 73.

The spelling of 47373472699921 in words is "forty-seven trillion, three hundred seventy-three billion, four hundred seventy-two million, six hundred ninety-nine thousand, nine hundred twenty-one".

Divisors: 1 6882839 47373472699921