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13809467392 = 21473472
BaseRepresentation
bin11001101110001101…
…11100000000000000
31022122101221121222021
430313012330000000
5211240210424032
610202144451224
7666132351610
oct146706740000
938571847867
1013809467392
1159470a2276
122814919b14
1313c0cbaba6
1495007aa40
1555c549097
hex3371bc000

13809467392 has 90 divisors (see below), whose sum is σ = 31654756952. Its totient is φ = 5901287424.

The previous prime is 13809467377. The next prime is 13809467393. The reversal of 13809467392 is 29376490831.

It is a super-2 number, since 2×138094673922 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13809467393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39796563 + ... + 39796909.

Almost surely, 213809467392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13809467392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15827378476).

13809467392 is an abundant number, since it is smaller than the sum of its proper divisors (17845289560).

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

13809467392 is an frugal number, since it uses more digits than its factorization.

13809467392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 13809467392 in words is "thirteen billion, eight hundred nine million, four hundred sixty-seven thousand, three hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 347 448 512 694 896 1024 1388 1792 2048 2429 2776 3584 4096 4858 5552 7168 8192 9716 11104 14336 16384 19432 22208 28672 38864 44416 57344 77728 88832 114688 120409 155456 177664 240818 310912 355328 481636 621824 710656 842863 963272 1243648 1421312 1685726 1926544 2487296 2842624 3371452 3853088 4974592 5685248 6742904 7706176 9949184 13485808 15412352 19898368 26971616 30824704 39796736 53943232 61649408 107886464 123298816 215772928 246597632 431545856 493195264 863091712 986390528 1726183424 1972781056 3452366848 6904733696 13809467392