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19438182430968 = 2337229569967817
BaseRepresentation
bin1000110101101110011011…
…11101010111100011111000
32112211021100100120220200110
410122313031331113203320
510021433344200242333
6105201435553504320
74044235165334400
oct432671575274370
975737310526613
1019438182430968
116214761259014
12221b2bbb720a0
13ab0021ca6c62
144b2b55017800
1523a972176063
hex11adcdf578f8

19438182430968 has 96 divisors (see below), whose sum is σ = 58478698126800. Its totient is φ = 5362257212928.

The previous prime is 19438182430957. The next prime is 19438182431023. The reversal of 19438182430968 is 86903428183491.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19438182430899 and 19438182430908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 284949805 + ... + 285018012.

Almost surely, 219438182430968 is an apocalyptic number.

It is an amenable number.

19438182430968 is an abundant number, since it is smaller than the sum of its proper divisors (39040515695832).

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

19438182430968 is a wasteful number, since it uses less digits than its factorization.

19438182430968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569967869 (or 569967858 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 66.

The spelling of 19438182430968 in words is "nineteen trillion, four hundred thirty-eight billion, one hundred eighty-two million, four hundred thirty thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 29 42 49 56 58 84 87 98 116 147 168 174 196 203 232 294 348 392 406 588 609 696 812 1176 1218 1421 1624 2436 2842 4263 4872 5684 8526 11368 17052 34104 569967817 1139935634 1709903451 2279871268 3419806902 3989774719 4559742536 6839613804 7979549438 11969324157 13679227608 15959098876 16529066693 23938648314 27928423033 31918197752 33058133386 47877296628 49587200079 55856846066 66116266772 83785269099 95754593256 99174400158 111713692132 115703466851 132232533544 167570538198 198348800316 223427384264 231406933702 335141076396 347110400553 396697600632 462813867404 670282152792 694220801106 809924267957 925627734808 1388441602212 1619848535914 2429772803871 2776883204424 3239697071828 4859545607742 6479394143656 9719091215484 19438182430968