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19216414217 = 711133293917
BaseRepresentation
bin10001111001011000…
…110011011000001001
31211121020001222122002
4101321120303120021
5303323400223332
612454454240345
71250125553150
oct217130633011
954536058562
1019216414217
11817118a470
1238836560b5
131a73251000
14d041d0597
15777087562
hex479633609

19216414217 has 64 divisors (see below), whose sum is σ = 26855539200. Its totient is φ = 13341968640.

The previous prime is 19216414201. The next prime is 19216414241. The reversal of 19216414217 is 71241461291.

It is not a de Polignac number, because 19216414217 - 24 = 19216414201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19216414277) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4903943 + ... + 4907859.

It is an arithmetic number, because the mean of its divisors is an integer number (419617800).

Almost surely, 219216414217 is an apocalyptic number.

It is an amenable number.

19216414217 is a deficient number, since it is larger than the sum of its proper divisors (7639124983).

19216414217 is a wasteful number, since it uses less digits than its factorization.

19216414217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003 (or 3977 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The spelling of 19216414217 in words is "nineteen billion, two hundred sixteen million, four hundred fourteen thousand, two hundred seventeen".

Divisors: 1 7 11 13 29 77 91 143 169 203 319 377 1001 1183 1859 2197 2233 2639 3917 4147 4901 13013 15379 24167 27419 29029 34307 43087 50921 53911 63713 113593 169169 301609 356447 377377 445991 560131 661973 700843 795151 1249523 1476709 3920917 4633811 4905901 7281703 8605649 8746661 10336963 16243799 19197217 50971921 60239543 94662139 113706593 134380519 211169387 249563821 662634973 1478185709 1746946747 2745202031 19216414217