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42531013524 = 22319375985451
BaseRepresentation
bin100111100111000010…
…111100001110010100
311001210001121100100010
4213213002330032110
51144100414413044
631312151120220
73033646435656
oct474702741624
9131701540303
1042531013524
1117045714a5a
1282ab673070
13401a5500bc
1420b67b26d6
15118dcdbbb9
hex9e70bc394

42531013524 has 96 divisors (see below), whose sum is σ = 109105113600. Its totient is φ = 12846211200.

The previous prime is 42531013463. The next prime is 42531013531.

42531013524 is nontrivially palindromic in base 10.

42531013524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×425310135242 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42531013491 and 42531013500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 454999 + ... + 540449.

It is an arithmetic number, because the mean of its divisors is an integer number (1136511600).

Almost surely, 242531013524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42531013524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54552556800).

42531013524 is an abundant number, since it is smaller than the sum of its proper divisors (66574100076).

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

42531013524 is a wasteful number, since it uses less digits than its factorization.

42531013524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85573 (or 85571 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

It can be divided in two parts, 425310 and 13524, that added together give a palindrome (438834).

The spelling of 42531013524 in words is "forty-two billion, five hundred thirty-one million, thirteen thousand, five hundred twenty-four".

Divisors: 1 2 3 4 6 12 19 37 38 57 59 74 76 111 114 118 148 177 222 228 236 354 444 703 708 1121 1406 2109 2183 2242 2812 3363 4218 4366 4484 6549 6726 8436 8732 13098 13452 26196 41477 82954 85451 124431 165908 170902 248862 256353 341804 497724 512706 1025412 1623569 3161687 3247138 4870707 5041609 6323374 6494276 9485061 9741414 10083218 12646748 15124827 18970122 19482828 20166436 30249654 37940244 60072053 60499308 95790571 120144106 180216159 186539533 191581142 240288212 287371713 360432318 373079066 383162284 559618599 574743426 720864636 746158132 1119237198 1149486852 2238474396 3544251127 7088502254 10632753381 14177004508 21265506762 42531013524