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13217284248 = 2337312537881
BaseRepresentation
bin11000100111100111…
…11100000010011000
31021010010122121102020
430103303330002120
5204032111043443
610023312134440
7645352030260
oct142363740230
937103577366
1013217284248
1156728a3313
12268a537420
1313283cb26c
148d556a7a0
15525572583
hex313cfc098

13217284248 has 64 divisors (see below), whose sum is σ = 38981867520. Its totient is φ = 3654547200.

The previous prime is 13217284207. The next prime is 13217284261. The reversal of 13217284248 is 84248271231.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 15 ways as a sum of consecutive naturals, for example, 1263733 + ... + 1274148.

It is an arithmetic number, because the mean of its divisors is an integer number (609091680).

Almost surely, 213217284248 is an apocalyptic number.

It is an amenable number.

13217284248 is an abundant number, since it is smaller than the sum of its proper divisors (25764583272).

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

13217284248 is a wasteful number, since it uses less digits than its factorization.

13217284248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537928 (or 2537924 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The spelling of 13217284248 in words is "thirteen billion, two hundred seventeen million, two hundred eighty-four thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 31 42 56 62 84 93 124 168 186 217 248 372 434 651 744 868 1302 1736 2604 5208 2537881 5075762 7613643 10151524 15227286 17765167 20303048 30454572 35530334 53295501 60909144 71060668 78674311 106591002 142121336 157348622 213182004 236022933 314697244 426364008 472045866 550720177 629394488 944091732 1101440354 1652160531 1888183464 2202880708 3304321062 4405761416 6608642124 13217284248