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13905966977 = 713049152239
BaseRepresentation
bin11001111001101110…
…00011011110000001
31022220010112022111222
430330313003132001
5211434411420402
610215513044425
71001413524530
oct147467033601
938803468458
1013905966977
1159966128a1
1228410b6715
131407ca7336
1495cbda317
15565c5b7a2
hex33cdc3781

13905966977 has 8 divisors (see below), whose sum is σ = 15893856000. Its totient is φ = 11918408544.

The previous prime is 13905966967. The next prime is 13905966979. The reversal of 13905966977 is 77966950931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13905966977 - 24 = 13905966961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13905966979) 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, 15224 + ... + 167462.

It is an arithmetic number, because the mean of its divisors is an integer number (1986732000).

Almost surely, 213905966977 is an apocalyptic number.

It is an amenable number.

13905966977 is a deficient number, since it is larger than the sum of its proper divisors (1987889023).

13905966977 is a wasteful number, since it uses less digits than its factorization.

13905966977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165295.

The product of its (nonzero) digits is 19289340, while the sum is 62.

The spelling of 13905966977 in words is "thirteen billion, nine hundred five million, nine hundred sixty-six thousand, nine hundred seventy-seven".

Divisors: 1 7 13049 91343 152239 1065673 1986566711 13905966977