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13212320332 = 22109191158657
BaseRepresentation
bin11000100111000010…
…00000001001001100
31021002210022102012111
430103201000021030
5204024323222312
610023013513404
7645261604231
oct142341001114
937083272174
1013212320332
115670012902
122688942864
131327380a33
148d4a37788
15524de18a7
hex31384024c

13212320332 has 24 divisors (see below), whose sum is σ = 23455998720. Its totient is φ = 6511242240.

The previous prime is 13212320323. The next prime is 13212320333. The reversal of 13212320332 is 23302321231.

It is not an unprimeable number, because it can be changed into a prime (13212320333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3948 + ... + 162604.

It is an arithmetic number, because the mean of its divisors is an integer number (977333280).

Almost surely, 213212320332 is an apocalyptic number.

It is an amenable number.

13212320332 is a deficient number, since it is larger than the sum of its proper divisors (10243678388).

13212320332 is a wasteful number, since it uses less digits than its factorization.

13212320332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158961 (or 158959 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13212320332 its reverse (23302321231), we get a palindrome (36514641563).

The spelling of 13212320332 in words is "thirteen billion, two hundred twelve million, three hundred twenty thousand, three hundred thirty-two".

Divisors: 1 2 4 109 191 218 382 436 764 20819 41638 83276 158657 317314 634628 17293613 30303487 34587226 60606974 69174452 121213948 3303080083 6606160166 13212320332