Search a number
-
+
6378955144912 = 247836311087487
BaseRepresentation
bin101110011010011011101…
…0110101111111011010000
3211120211012100111111220201
41130310313112233323100
51314003100004114122
621322241310544544
71225602312045430
oct134646726577320
924524170444821
106378955144912
11203a332975729
1287034b208154
133736c09ac95c
14180a590042c0
15b0de8023a27
hex5cd375afed0

6378955144912 has 80 divisors (see below), whose sum is σ = 14317675610112. Its totient is φ = 2696617284480.

The previous prime is 6378955144889. The next prime is 6378955144957. The reversal of 6378955144912 is 2194415598736.

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, 5322033 + ... + 6409519.

Almost surely, 26378955144912 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 6378955144912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7158837805056).

6378955144912 is an abundant number, since it is smaller than the sum of its proper divisors (7938720465200).

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

6378955144912 is a wasteful number, since it uses less digits than its factorization.

6378955144912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088216 (or 1088210 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 64.

The spelling of 6378955144912 in words is "six trillion, three hundred seventy-eight billion, nine hundred fifty-five million, one hundred forty-four thousand, nine hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 56 83 112 166 332 581 631 664 1162 1262 1328 2324 2524 4417 4648 5048 8834 9296 10096 17668 35336 52373 70672 104746 209492 366611 418984 733222 837968 1087487 1466444 2174974 2932888 4349948 5865776 7612409 8699896 15224818 17399792 30449636 60899272 90261421 121798544 180522842 361045684 631829947 686204297 722091368 1263659894 1372408594 1444182736 2527319788 2744817188 4803430079 5054639576 5489634376 9606860158 10109279152 10979268752 19213720316 38427440632 56954956651 76854881264 113909913302 227819826604 398684696557 455639653208 797369393114 911279306416 1594738786228 3189477572456 6378955144912