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1369287168 = 29317411279
BaseRepresentation
bin101000110011101…
…1010101000000000
310112102112222212120
41101213122220000
510301014142133
6343512324240
745634514604
oct12147325000
93472488776
101369287168
11642a21797
123226a3680
1318a8b71c2
14cdbd9504
1580329ab3
hex519daa00

1369287168 has 160 divisors (see below), whose sum is σ = 3959746560. Its totient is φ = 418775040.

The previous prime is 1369287167. The next prime is 1369287173. The reversal of 1369287168 is 8617829631.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 1369287168.

It is not an unprimeable number, because it can be changed into a prime (1369287167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1069953 + ... + 1071231.

It is an arithmetic number, because the mean of its divisors is an integer number (24748416).

Almost surely, 21369287168 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 1369287168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979873280).

1369287168 is an abundant number, since it is smaller than the sum of its proper divisors (2590459392).

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

1369287168 is a wasteful number, since it uses less digits than its factorization.

1369287168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1342 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 1369287168 is about 37003.8804451641. The cubic root of 1369287168 is about 1110.4478802919.

The spelling of 1369287168 in words is "one billion, three hundred sixty-nine million, two hundred eighty-seven thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 41 48 51 64 68 82 96 102 123 128 136 164 192 204 246 256 272 328 384 408 492 512 544 656 697 768 816 984 1088 1279 1312 1394 1536 1632 1968 2091 2176 2558 2624 2788 3264 3837 3936 4182 4352 5116 5248 5576 6528 7674 7872 8364 8704 10232 10496 11152 13056 15348 15744 16728 20464 20992 21743 22304 26112 30696 31488 33456 40928 43486 44608 52439 61392 62976 65229 66912 81856 86972 89216 104878 122784 130458 133824 157317 163712 173944 178432 209756 245568 260916 267648 314634 327424 347888 356864 419512 491136 521832 535296 629268 654848 695776 839024 891463 982272 1043664 1070592 1258536 1391552 1678048 1782926 1964544 2087328 2517072 2674389 2783104 3356096 3565852 4174656 5034144 5348778 5566208 6712192 7131704 8349312 10068288 10697556 11132416 13424384 14263408 16698624 20136576 21395112 26848768 28526816 33397248 40273152 42790224 57053632 80546304 85580448 114107264 171160896 228214528 342321792 456429056 684643584 1369287168