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444970148920 = 2351112710497591
BaseRepresentation
bin1100111100110100100…
…10011010010000111000
31120112112201211122001221
412132122102122100320
524242244324231140
6540225542321424
744101526600623
oct6363222322070
91515481748057
10444970148920
11161790059930
12722a3729274
1332c642ca20b
14177728a0dba
15b8948dc14a
hex679a49a438

444970148920 has 128 divisors (see below), whose sum is σ = 1101993984000. Its totient is φ = 160359091200.

The previous prime is 444970148879. The next prime is 444970148921. The reversal of 444970148920 is 29841079444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444970148921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58614325 + ... + 58621915.

It is an arithmetic number, because the mean of its divisors is an integer number (8609328000).

Almost surely, 2444970148920 is an apocalyptic number.

444970148920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 444970148920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550996992000).

444970148920 is an abundant number, since it is smaller than the sum of its proper divisors (657023835080).

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

444970148920 is a wasteful number, since it uses less digits than its factorization.

444970148920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8789 (or 8785 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 444970148920 in words is "four hundred forty-four billion, nine hundred seventy million, one hundred forty-eight thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 127 220 254 440 508 635 1016 1049 1270 1397 2098 2540 2794 4196 5080 5245 5588 6985 7591 8392 10490 11176 11539 13970 15182 20980 23078 27940 30364 37955 41960 46156 55880 57695 60728 75910 83501 92312 115390 133223 151820 167002 230780 266446 303640 334004 417505 461560 532892 666115 668008 835010 964057 1065784 1332230 1465453 1670020 1928114 2664460 2930906 3340040 3856228 4820285 5328920 5861812 7327265 7712456 7962959 9640570 10604627 11723624 14654530 15925918 19281140 21209254 29309060 31851836 38562280 39814795 42418508 53023135 58618120 63703672 79629590 84837016 87592549 106046270 159259180 175185098 212092540 318518360 350370196 424185080 437962745 700740392 875925490 1011295793 1751850980 2022591586 3503701960 4045183172 5056478965 8090366344 10112957930 11124253723 20225915860 22248507446 40451831720 44497014892 55621268615 88994029784 111242537230 222485074460 444970148920