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142400202 = 23727112511
BaseRepresentation
bin10000111110011…
…01101011001010
3100220221200100120
420133031223022
5242423301302
622044044110
73346244640
oct1037155312
9326850316
10142400202
117342141a
123b833636
132366a999
1414cab190
15c77c9bc
hex87cdaca

142400202 has 32 divisors (see below), whose sum is σ = 326713344. Its totient is φ = 40532400.

The previous prime is 142400197. The next prime is 142400213. The reversal of 142400202 is 202004241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5127 + ... + 17637.

It is an arithmetic number, because the mean of its divisors is an integer number (10209792).

Almost surely, 2142400202 is an apocalyptic number.

142400202 is an abundant number, since it is smaller than the sum of its proper divisors (184313142).

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

142400202 is a wasteful number, since it uses less digits than its factorization.

142400202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12794.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 142400202 is about 11933.1555759573. The cubic root of 142400202 is about 522.2000011637.

Adding to 142400202 its reverse (202004241), we get a palindrome (344404443).

The spelling of 142400202 in words is "one hundred forty-two million, four hundred thousand, two hundred two".

Divisors: 1 2 3 6 7 14 21 42 271 542 813 1626 1897 3794 5691 11382 12511 25022 37533 75066 87577 175154 262731 525462 3390481 6780962 10171443 20342886 23733367 47466734 71200101 142400202