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12372227321 = 192356949757
BaseRepresentation
bin10111000010111000…
…10011010011111001
31011221020112021020112
423201130103103321
5200314242233241
65403403434105
7615411124406
oct134134232371
934836467215
1012372227321
115279888563
122493525935
131222300b8c
148552332ad
154c629a1eb
hex2e17134f9

12372227321 has 16 divisors (see below), whose sum is σ = 13613788800. Its totient is φ = 11191517568.

The previous prime is 12372227293. The next prime is 12372227323.

12372227321 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12372227321 - 214 = 12372210937 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12372227323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223775 + ... + 273531.

It is an arithmetic number, because the mean of its divisors is an integer number (850861800).

Almost surely, 212372227321 is an apocalyptic number.

It is an amenable number.

12372227321 is a deficient number, since it is larger than the sum of its proper divisors (1241561479).

12372227321 is a wasteful number, since it uses less digits than its factorization.

12372227321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50368.

The product of its digits is 14112, while the sum is 32.

The spelling of 12372227321 in words is "twelve billion, three hundred seventy-two million, two hundred twenty-seven thousand, three hundred twenty-one".

Divisors: 1 19 23 437 569 10811 13087 49757 248653 945383 1144411 21743809 28311733 537922927 651169859 12372227321