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142023310 = 25111399317
BaseRepresentation
bin10000111011100…
…01101010001110
3100220020112100121
420131301222032
5242324221220
622032015154
73343115062
oct1035615216
9326215317
10142023310
1173194240
123b6914ba
1323568280
1414c0daa2
15c705eaa
hex8771a8e

142023310 has 32 divisors (see below), whose sum is σ = 300337632. Its totient is φ = 47671680.

The previous prime is 142023293. The next prime is 142023319. The reversal of 142023310 is 13320241.

It is a happy number.

142023310 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 2×1420233102 = 40341241166712200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142023319) 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, 48229 + ... + 51088.

It is an arithmetic number, because the mean of its divisors is an integer number (9385551).

Almost surely, 2142023310 is an apocalyptic number.

142023310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142023310 is an abundant number, since it is smaller than the sum of its proper divisors (158314322).

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

142023310 is a wasteful number, since it uses less digits than its factorization.

142023310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99348.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 142023310 is about 11917.3533135508. The cubic root of 142023310 is about 521.7388901740.

Adding to 142023310 its reverse (13320241), we get a palindrome (155343551).

The spelling of 142023310 in words is "one hundred forty-two million, twenty-three thousand, three hundred ten".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 130 143 286 715 1430 99317 198634 496585 993170 1092487 1291121 2184974 2582242 5462435 6455605 10924870 12911210 14202331 28404662 71011655 142023310