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38663296345 = 511368430613
BaseRepresentation
bin100100000000100000…
…110001010101011001
310200210111210221210201
4210000200301111121
51113140300440340
625432304342201
72536053411412
oct440040612531
9120714727721
1038663296345
1115440471883
1275b0314961
13385216625b
141c2ac54809
15101449679a
hex900831559

38663296345 has 8 divisors (see below), whose sum is σ = 46806539976. Its totient is φ = 30656914176.

The previous prime is 38663296337. The next prime is 38663296349. The reversal of 38663296345 is 54369236683.

It can be written as a sum of positive squares in 4 ways, for example, as 73051209 + 38590245136 = 8547^2 + 196444^2 .

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 38663296345 - 23 = 38663296337 is a prime.

It is a super-2 number, since 2×386632963452 (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 (38663296349) 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, 34214742 + ... + 34215871.

It is an arithmetic number, because the mean of its divisors is an integer number (5850817497).

Almost surely, 238663296345 is an apocalyptic number.

It is an amenable number.

38663296345 is a deficient number, since it is larger than the sum of its proper divisors (8143243631).

38663296345 is a wasteful number, since it uses less digits than its factorization.

38663296345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68430731.

The product of its digits is 16796160, while the sum is 55.

The spelling of 38663296345 in words is "thirty-eight billion, six hundred sixty-three million, two hundred ninety-six thousand, three hundred forty-five".

Divisors: 1 5 113 565 68430613 342153065 7732659269 38663296345