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24472348993 = 121320175061
BaseRepresentation
bin10110110010101010…
…100110100101000001
32100011112001010201001
4112302222212211001
5400104410131433
615124211212001
71524306351151
oct266252464501
970145033631
1024472348993
11a419004014
1248ab8a7001
13240011c6a1
141282274761
159836e657d
hex5b2aa6941

24472348993 has 4 divisors (see below), whose sum is σ = 24492525268. Its totient is φ = 24452172720.

The previous prime is 24472348981. The next prime is 24472349009. The reversal of 24472348993 is 39984327442.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39984327442 = 219992163721.

It can be written as a sum of positive squares in 2 ways, for example, as 3922266384 + 20550082609 = 62628^2 + 143353^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-24472348993 is a prime.

It is a super-2 number, since 2×244723489932 (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 (24472348903) 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, 10086318 + ... + 10088743.

It is an arithmetic number, because the mean of its divisors is an integer number (6123131317).

Almost surely, 224472348993 is an apocalyptic number.

It is an amenable number.

24472348993 is a deficient number, since it is larger than the sum of its proper divisors (20176275).

24472348993 is a wasteful number, since it uses less digits than its factorization.

24472348993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20176274.

The product of its digits is 10450944, while the sum is 55.

The spelling of 24472348993 in words is "twenty-four billion, four hundred seventy-two million, three hundred forty-eight thousand, nine hundred ninety-three".

Divisors: 1 1213 20175061 24472348993