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142205341530 = 23571761016529
BaseRepresentation
bin1000010001110000011…
…0010100111101011010
3111121001112102211121010
42010130012110331122
54312214031412110
6145154521554350
713162660313310
oct2043406247532
9447045384533
10142205341530
115534423194a
12236883459b6
1310543743a05
146c5049a0b0
153a74646020
hex211c194f5a

142205341530 has 128 divisors (see below), whose sum is σ = 413123950080. Its totient is φ = 30582374400.

The previous prime is 142205341519. The next prime is 142205341631. The reversal of 142205341530 is 35143502241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21777306 + ... + 21783834.

It is an arithmetic number, because the mean of its divisors is an integer number (3227530860).

Almost surely, 2142205341530 is an apocalyptic number.

142205341530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142205341530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206561975040).

142205341530 is an abundant number, since it is smaller than the sum of its proper divisors (270918608550).

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

142205341530 is a wasteful number, since it uses less digits than its factorization.

142205341530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12664.

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

Adding to 142205341530 its reverse (35143502241), we get a palindrome (177348843771).

The spelling of 142205341530 in words is "one hundred forty-two billion, two hundred five million, three hundred forty-one thousand, five hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 17 21 30 34 35 42 51 70 85 102 105 119 170 210 238 255 357 510 595 714 1190 1785 3570 6101 6529 12202 13058 18303 19587 30505 32645 36606 39174 42707 45703 61010 65290 85414 91406 91515 97935 103717 110993 128121 137109 183030 195870 207434 213535 221986 228515 256242 274218 311151 332979 427070 457030 518585 554965 622302 640605 665958 685545 726019 776951 1037170 1109930 1281210 1371090 1452038 1553902 1555755 1664895 2178057 2330853 3111510 3329790 3630095 3884755 4356114 4661706 7260190 7769510 10890285 11654265 21780570 23308530 39833429 79666858 119500287 199167145 239000574 278834003 398334290 557668006 597501435 677168293 836502009 1195002870 1354336586 1394170015 1673004018 2031504879 2788340030 3385841465 4063009758 4182510045 4740178051 6771682930 8365020090 9480356102 10157524395 14220534153 20315048790 23700890255 28441068306 47401780510 71102670765 142205341530