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143796242 = 2178940189
BaseRepresentation
bin10001001001000…
…10100000010010
3101000120121100202
420210202200102
5243302434432
622134015202
73364151012
oct1044424022
9330517322
10143796242
1174195277
12401a7502
1323a39245
1415151c42
15c956462
hex8922812

143796242 has 8 divisors (see below), whose sum is σ = 215820300. Its totient is φ = 71856144.

The previous prime is 143796241. The next prime is 143796293. The reversal of 143796242 is 242697341.

It can be written as a sum of positive squares in 2 ways, for example, as 143304841 + 491401 = 11971^2 + 701^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 143796196 and 143796205.

It is not an unprimeable number, because it can be changed into a prime (143796241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16517 + ... + 23672.

Almost surely, 2143796242 is an apocalyptic number.

143796242 is a deficient number, since it is larger than the sum of its proper divisors (72024058).

143796242 is a wasteful number, since it uses less digits than its factorization.

143796242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41980.

The product of its digits is 72576, while the sum is 38.

The square root of 143796242 is about 11991.5070779281. The cubic root of 143796242 is about 523.9009413004.

It can be divided in two parts, 1437 and 96242, that added together give a palindrome (97679).

The spelling of 143796242 in words is "one hundred forty-three million, seven hundred ninety-six thousand, two hundred forty-two".

Divisors: 1 2 1789 3578 40189 80378 71898121 143796242