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13947846201 = 32393672
BaseRepresentation
bin11001111110101101…
…10011111000111001
31100000001100000000100
430333112303320321
5212031122034301
610224010430013
71002432510432
oct147726637071
940001300010
1013947846201
115a08217323
122853132309
13141387b343
149645bc489
15569780286
hex33f5b3e39

13947846201 has 9 divisors (see below), whose sum is σ = 20147400741. Its totient is φ = 9298327932.

The previous prime is 13947846191. The next prime is 13947846239. The reversal of 13947846201 is 10264874931.

The square root of 13947846201 is 118101.

It is a perfect power (a square), and thus also a powerful number.

13947846201 is a `hidden beast` number, since 13 + 9 + 4 + 7 + 8 + 4 + 620 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 13947846201 - 211 = 13947844153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13947846271) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 334620 + ... + 373986.

Almost surely, 213947846201 is an apocalyptic number.

13947846201 is the 118101-st square number.

13947846201 is the 59051-st centered octagonal number.

It is an amenable number.

13947846201 is a deficient number, since it is larger than the sum of its proper divisors (6199554540).

13947846201 is an frugal number, since it uses more digits than its factorization.

13947846201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78740 (or 39370 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 13947846201 in words is "thirteen billion, nine hundred forty-seven million, eight hundred forty-six thousand, two hundred one".

Divisors: 1 3 9 39367 118101 354303 1549760689 4649282067 13947846201