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13890211874 = 271190196181
BaseRepresentation
bin11001110111110101…
…11101000000100010
31022212000212212120122
430323322331000202
5211421343234444
610214151240242
71001132565350
oct147372750042
938760785518
1013890211874
115988731850
122837979082
13140494c0a6
1495aa987d0
155646984ee
hex33bebd022

13890211874 has 16 divisors (see below), whose sum is σ = 25976500416. Its totient is φ = 5411770800.

The previous prime is 13890211849. The next prime is 13890211891. The reversal of 13890211874 is 47811209831.

It is a super-2 number, since 2×138902118742 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45097937 + ... + 45098244.

It is an arithmetic number, because the mean of its divisors is an integer number (1623531276).

Almost surely, 213890211874 is an apocalyptic number.

13890211874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

13890211874 is a deficient number, since it is larger than the sum of its proper divisors (12086288542).

13890211874 is a wasteful number, since it uses less digits than its factorization.

13890211874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90196201.

The product of its (nonzero) digits is 96768, while the sum is 44.

The spelling of 13890211874 in words is "thirteen billion, eight hundred ninety million, two hundred eleven thousand, eight hundred seventy-four".

Divisors: 1 2 7 11 14 22 77 154 90196181 180392362 631373267 992157991 1262746534 1984315982 6945105937 13890211874