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142342410 = 23575211301
BaseRepresentation
bin10000111101111…
…11100100001010
3100220211202002010
420132333210022
5242414424120
622042520350
73345614310
oct1036774412
9326752063
10142342410
1173391a61
123b8060b6
132364a5a2
1414c940b0
15c76a7e0
hex87bf90a

142342410 has 64 divisors (see below), whose sum is σ = 391474944. Its totient is φ = 32448000.

The previous prime is 142342391. The next prime is 142342457. The reversal of 142342410 is 14243241.

It is a super-2 number, since 2×1423424102 = 40522723369216200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 108760 + ... + 110060.

It is an arithmetic number, because the mean of its divisors is an integer number (6116796).

Almost surely, 2142342410 is an apocalyptic number.

142342410 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 142342410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195737472).

142342410 is an abundant number, since it is smaller than the sum of its proper divisors (249132534).

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

142342410 is a wasteful number, since it uses less digits than its factorization.

142342410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 142342410 is about 11930.7338416377. The cubic root of 142342410 is about 522.1293480195.

Adding to 142342410 its reverse (14243241), we get a palindrome (156585651).

The spelling of 142342410 in words is "one hundred forty-two million, three hundred forty-two thousand, four hundred ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 521 1042 1301 1563 2602 2605 3126 3647 3903 5210 6505 7294 7806 7815 9107 10941 13010 15630 18214 18235 19515 21882 27321 36470 39030 45535 54642 54705 91070 109410 136605 273210 677821 1355642 2033463 3389105 4066926 4744747 6778210 9489494 10167315 14234241 20334630 23723735 28468482 47447470 71171205 142342410