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438248053003168 = 2515173902606713
BaseRepresentation
bin110001110100101011001001…
…1100001011101001110100000
32010110201002211022211110001201
41203221112103201131032200
5424420224003032100133
64152024213131010544
7161211243204152212
oct14351262341351640
92113632738743051
10438248053003168
11117703a568a9641
124119b4aa299a54
1315a6c7ca162cb5
147a314672665b2
15359ec86c93d7d
hex18e959385d3a0

438248053003168 has 24 divisors (see below), whose sum is σ = 862857719528868. Its totient is φ = 219109584551424.

The previous prime is 438248053003139. The next prime is 438248053003169. The reversal of 438248053003168 is 861300350842834.

It can be written as a sum of positive squares in 2 ways, for example, as 438239557325584 + 8495677584 = 20934172^2 + 92172^2 .

It is a super-2 number, since 2×4382480530031682 (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (438248053003169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450817821 + ... + 451788892.

Almost surely, 2438248053003168 is an apocalyptic number.

It is an amenable number.

438248053003168 is a deficient number, since it is larger than the sum of its proper divisors (424609666525700).

438248053003168 is a wasteful number, since it uses less digits than its factorization.

438248053003168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902621896 (or 902621888 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 55.

The spelling of 438248053003168 in words is "four hundred thirty-eight trillion, two hundred forty-eight billion, fifty-three million, three thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 16 32 15173 30346 60692 121384 242768 485536 902606713 1805213426 3610426852 7220853704 14441707408 28883414816 13695251656349 27390503312698 54781006625396 109562013250792 219124026501584 438248053003168