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13898973463 = 294331135839
BaseRepresentation
bin11001111000111000…
…11000000100010111
31022212122101000012221
430330130120010113
5211431114122323
610215103123211
71001300216344
oct147434300427
938778330187
1013898973463
115992676531
12283a8a3507
1314066c906b
1495bcd97cb
1556532955d
hex33c718117

13898973463 has 16 divisors (see below), whose sum is σ = 14760345600. Its totient is φ = 13065101280.

The previous prime is 13898973427. The next prime is 13898973469. The reversal of 13898973463 is 36437989831.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13898973463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13898973469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369898 + ... + 405736.

It is an arithmetic number, because the mean of its divisors is an integer number (922521600).

Almost surely, 213898973463 is an apocalyptic number.

13898973463 is a deficient number, since it is larger than the sum of its proper divisors (861372137).

13898973463 is a wasteful number, since it uses less digits than its factorization.

13898973463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36222.

The product of its digits is 23514624, while the sum is 61.

The spelling of 13898973463 in words is "thirteen billion, eight hundred ninety-eight million, nine hundred seventy-three thousand, four hundred sixty-three".

Divisors: 1 29 43 311 1247 9019 13373 35839 387817 1039331 1541077 11145929 44691233 323231941 479274947 13898973463