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42015524000 = 255352120161
BaseRepresentation
bin100111001000010100…
…100000010010100000
311000110010121202122112
4213020110200102200
51142021433232000
631145054254452
73015120030032
oct471024402240
9130403552575
1042015524000
111690073905a
128186ab7428
133c67803908
142068147c52
15115d914235
hex9c85204a0

42015524000 has 96 divisors (see below), whose sum is σ = 103435414992. Its totient is φ = 16773120000.

The previous prime is 42015523997. The next prime is 42015524003. The reversal of 42015524000 is 42551024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42015523997) and next prime (42015524003).

It can be written as a sum of positive squares in 8 ways, for example, as 905528464 + 41109995536 = 30092^2 + 202756^2 .

It is not an unprimeable number, because it can be changed into a prime (42015524003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2073920 + ... + 2094080.

Almost surely, 242015524000 is an apocalyptic number.

42015524000 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 42015524000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51717707496).

42015524000 is an abundant number, since it is smaller than the sum of its proper divisors (61419890992).

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

42015524000 is a wasteful number, since it uses less digits than its factorization.

42015524000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20707 (or 20689 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The spelling of 42015524000 in words is "forty-two billion, fifteen million, five hundred twenty-four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 521 800 1000 1042 2000 2084 2605 4000 4168 5210 8336 10420 13025 16672 20161 20840 26050 40322 41680 52100 65125 80644 83360 100805 104200 130250 161288 201610 208400 260500 322576 403220 416800 504025 521000 645152 806440 1008050 1042000 1612880 2016100 2084000 2520125 3225760 4032200 5040250 8064400 10080500 10503881 16128800 20161000 21007762 40322000 42015524 52519405 80644000 84031048 105038810 168062096 210077620 262597025 336124192 420155240 525194050 840310480 1050388100 1312985125 1680620960 2100776200 2625970250 4201552400 5251940500 8403104800 10503881000 21007762000 42015524000