Search a number
-
+
142412550 = 23527235897
BaseRepresentation
bin10000111110100…
…00101100000110
3100220222022021220
420133100230012
5242424200200
622044221210
73346325640
oct1037205406
9326868256
10142412550
117342a725
123b83a806
13236734a7
1414cb1890
15c7814a0
hex87d0b06

142412550 has 96 divisors (see below), whose sum is σ = 421258752. Its totient is φ = 31130880.

The previous prime is 142412531. The next prime is 142412597. The reversal of 142412550 is 55214241.

It is a self number, because there is not a number n which added to its sum of digits gives 142412550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21202 + ... + 27098.

It is an arithmetic number, because the mean of its divisors is an integer number (4388112).

Almost surely, 2142412550 is an apocalyptic number.

142412550 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 142412550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210629376).

142412550 is an abundant number, since it is smaller than the sum of its proper divisors (278846202).

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

142412550 is a wasteful number, since it uses less digits than its factorization.

142412550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942 (or 5937 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 142412550 is about 11933.6729467503. The cubic root of 142412550 is about 522.2150946330.

Adding to 142412550 its reverse (55214241), we get a palindrome (197626791).

The spelling of 142412550 in words is "one hundred forty-two million, four hundred twelve thousand, five hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 25 30 35 42 46 50 69 70 75 105 115 138 150 161 175 210 230 322 345 350 483 525 575 690 805 966 1050 1150 1610 1725 2415 3450 4025 4830 5897 8050 11794 12075 17691 24150 29485 35382 41279 58970 82558 88455 123837 135631 147425 176910 206395 247674 271262 294850 406893 412790 442275 619185 678155 813786 884550 949417 1031975 1238370 1356310 1898834 2034465 2063950 2848251 3095925 3390775 4068930 4747085 5696502 6191850 6781550 9494170 10172325 14241255 20344650 23735425 28482510 47470850 71206275 142412550