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13911214968 = 2333710978387
BaseRepresentation
bin11001111010010110…
…00100101101111000
31022220111101221102000
430331023010231320
5211442232334333
610220221341000
71001506243020
oct147513045570
938814357360
1013911214968
115999577782
122842a07760
1314090c3c61
1495d7a4a80
15566446713
hex33d2c4b78

13911214968 has 128 divisors (see below), whose sum is σ = 44208115200. Its totient is φ = 3970536192.

The previous prime is 13911214927. The next prime is 13911214979. The reversal of 13911214968 is 86941211931.

13911214968 is a `hidden beast` number, since 1 + 39 + 1 + 121 + 496 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1654471 + ... + 1662857.

It is an arithmetic number, because the mean of its divisors is an integer number (345375900).

Almost surely, 213911214968 is an apocalyptic number.

13911214968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13911214968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22104057600).

13911214968 is an abundant number, since it is smaller than the sum of its proper divisors (30296900232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13911214968 is a wasteful number, since it uses less digits than its factorization.

13911214968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9506 (or 9496 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The spelling of 13911214968 in words is "thirteen billion, nine hundred eleven million, two hundred fourteen thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1097 1512 2194 3291 4388 6582 7679 8387 8776 9873 13164 15358 16774 19746 23037 25161 26328 29619 30716 33548 39492 46074 50322 58709 59238 61432 67096 69111 75483 78984 92148 100644 117418 118476 138222 150966 176127 184296 201288 207333 226449 234836 236952 276444 301932 352254 414666 452898 469672 528381 552888 603864 704508 829332 905796 1056762 1409016 1585143 1658664 1811592 2113524 3170286 4227048 6340572 9200539 12681144 18401078 27601617 36802156 55203234 64403773 73604312 82804851 110406468 128807546 165609702 193211319 220812936 248414553 257615092 331219404 386422638 496829106 515230184 579633957 662438808 772845276 993658212 1159267914 1545690552 1738901871 1987316424 2318535828 3477803742 4637071656 6955607484 13911214968