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142200220 = 22571239419
BaseRepresentation
bin10000111100111…
…00110110011100
3100220120112000211
420132130312130
5242400401340
622035502204
73344452621
oct1036346634
9326515024
10142200220
11732a5148
123b757964
13235ca956
1414c58348
15c73d5ea
hex879cd9c

142200220 has 48 divisors (see below), whose sum is σ = 304819200. Its totient is φ = 55711040.

The previous prime is 142200209. The next prime is 142200221. The reversal of 142200220 is 22002241.

It is a self number, because there is not a number n which added to its sum of digits gives 142200220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142200221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339171 + ... + 339589.

It is an arithmetic number, because the mean of its divisors is an integer number (6350400).

Almost surely, 2142200220 is an apocalyptic number.

142200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142200220 is an abundant number, since it is smaller than the sum of its proper divisors (162618980).

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

142200220 is a wasteful number, since it uses less digits than its factorization.

142200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 142200220 is about 11924.7733731086. The cubic root of 142200220 is about 521.9554333340.

Adding to 142200220 its reverse (22002241), we get a palindrome (164202461).

The spelling of 142200220 in words is "one hundred forty-two million, two hundred thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 71 142 239 284 355 419 478 710 838 956 1195 1420 1676 2095 2390 4190 4780 8380 16969 29749 33938 59498 67876 84845 100141 118996 148745 169690 200282 297490 339380 400564 500705 594980 1001410 2002820 7110011 14220022 28440044 35550055 71100110 142200220