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13821046169 = 73163691457
BaseRepresentation
bin11001101111100110…
…00110110110011001
31022200012201220001212
430313303012312121
5211301141434134
610203240552505
7666332645150
oct146763066631
938605656055
1013821046169
115952690607
122818782735
1313c3513238
14951812597
1555d584bce
hex337cc6d99

13821046169 has 8 divisors (see below), whose sum is σ = 16305013248. Its totient is φ = 11464462080.

The previous prime is 13821046163. The next prime is 13821046199. The reversal of 13821046169 is 96164012831.

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 13821046169 - 24 = 13821046153 is a prime.

It is a super-3 number, since 3×138210461693 (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13821046163) 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, 31845512 + ... + 31845945.

It is an arithmetic number, because the mean of its divisors is an integer number (2038126656).

Almost surely, 213821046169 is an apocalyptic number.

It is an amenable number.

13821046169 is a deficient number, since it is larger than the sum of its proper divisors (2483967079).

13821046169 is an equidigital number, since it uses as much as digits as its factorization.

13821046169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63691495.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 13821046169 in words is "thirteen billion, eight hundred twenty-one million, forty-six thousand, one hundred sixty-nine".

Divisors: 1 7 31 217 63691457 445840199 1974435167 13821046169