Search a number
-
+
381917120697348 = 22390415269166809
BaseRepresentation
bin101011011010110100000001…
…0010100000001010000000100
31212002020220211210121122202020
41112311220002110001100010
5400024312230344303343
63432134145250443140
7143305413165635505
oct12665500224012004
91762226753548666
10381917120697348
111007661610906a5
1236a0211ab934b0
1313514825cc14c2
146a44c5c956bac
152e2481a104b83
hex15b5a02501404

381917120697348 has 48 divisors (see below), whose sum is σ = 891268769603520. Its totient is φ = 127287304883200.

The previous prime is 381917120697293. The next prime is 381917120697487. The reversal of 381917120697348 is 843796021719183.

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, 5716518568 + ... + 5716585376.

It is an arithmetic number, because the mean of its divisors is an integer number (18568099366740).

Almost surely, 2381917120697348 is an apocalyptic number.

It is an amenable number.

381917120697348 is an abundant number, since it is smaller than the sum of its proper divisors (509351648906172).

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

381917120697348 is a wasteful number, since it uses less digits than its factorization.

381917120697348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128548 (or 128546 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 69.

The spelling of 381917120697348 in words is "three hundred eighty-one trillion, nine hundred seventeen billion, one hundred twenty million, six hundred ninety-seven thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 9041 18082 27123 36164 52691 54246 66809 105382 108492 133618 158073 200427 210764 267236 316146 400854 632292 801708 476379331 604020169 952758662 1208040338 1429137993 1812060507 1905517324 2416080676 2858275986 3520233019 3624121014 5716551972 7040466038 7248242028 10560699057 14080932076 21121398114 42242796228 31826426724779 63652853449558 95479280174337 127305706899116 190958560348674 381917120697348