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16426175381 = 7211193269587
BaseRepresentation
bin11110100110001001…
…11000101110010101
31120101202202011111222
433103010320232111
5232120100103011
611313541540125
71121025121100
oct172304705625
946352664458
1016426175381
116a6a169760
123225114645
13171a160a05
14b1b7cb737
15662129ddb
hex3d3138b95

16426175381 has 48 divisors (see below), whose sum is σ = 21066816960. Its totient is φ = 12664350720.

The previous prime is 16426175377. The next prime is 16426175383. The reversal of 16426175381 is 18357162461.

It is not a de Polignac number, because 16426175381 - 22 = 16426175377 is a prime.

It is a super-2 number, since 2×164261753812 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16426175383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27982970 + ... + 27983556.

It is an arithmetic number, because the mean of its divisors is an integer number (438892020).

Almost surely, 216426175381 is an apocalyptic number.

16426175381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16426175381 is a deficient number, since it is larger than the sum of its proper divisors (4640641579).

16426175381 is a wasteful number, since it uses less digits than its factorization.

16426175381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1067 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The spelling of 16426175381 in words is "sixteen billion, four hundred twenty-six million, one hundred seventy-five thousand, three hundred eighty-one".

Divisors: 1 7 11 49 77 193 269 539 587 1351 1883 2123 2959 4109 6457 9457 13181 14861 20713 28763 45199 51917 104027 113291 144991 157903 316393 363419 571087 793037 1105321 1246201 1736933 2543933 3997609 5551259 7737247 8723407 12158531 27983263 30475279 61063849 85109717 213326953 335228069 1493288671 2346596483 16426175381