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13889954950 = 252277799099
BaseRepresentation
bin11001110111110011…
…11110010010000110
31022212000101211010221
430323321332102012
5211421312024300
610214141534554
71001130445324
oct147371762206
938760354127
1013889954950
115988576813
12283787445a
13140488c171
1495aa2cd14
1556464731a
hex33be7e486

13889954950 has 12 divisors (see below), whose sum is σ = 25835316300. Its totient is φ = 5555981960.

The previous prime is 13889954933. The next prime is 13889954951. The reversal of 13889954950 is 5945998831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889954951) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138899500 + ... + 138899599.

It is an arithmetic number, because the mean of its divisors is an integer number (2152943025).

Almost surely, 213889954950 is an apocalyptic number.

13889954950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13889954950 is a deficient number, since it is larger than the sum of its proper divisors (11945361350).

13889954950 is a wasteful number, since it uses less digits than its factorization.

13889954950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277799111 (or 277799106 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 61.

The spelling of 13889954950 in words is "thirteen billion, eight hundred eighty-nine million, nine hundred fifty-four thousand, nine hundred fifty".

Divisors: 1 2 5 10 25 50 277799099 555598198 1388995495 2777990990 6944977475 13889954950