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142571354 = 271285677
BaseRepresentation
bin10000111111101…
…11011101011010
3100221021101010112
420133313131122
5242444240404
622051444322
73350556632
oct1037673532
9327241115
10142571354
1173528a72
123b8b66a2
13236ca863
1414d136c2
15c7b356e
hex87f775a

142571354 has 4 divisors (see below), whose sum is σ = 213857034. Its totient is φ = 71285676.

The previous prime is 142571339. The next prime is 142571357. The reversal of 142571354 is 453175241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 453175241 = 1450331247.

It can be written as a sum of positive squares in only one way, i.e., 103571329 + 39000025 = 10177^2 + 6245^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142571354.

It is not an unprimeable number, because it can be changed into a prime (142571357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35642837 + ... + 35642840.

Almost surely, 2142571354 is an apocalyptic number.

142571354 is a deficient number, since it is larger than the sum of its proper divisors (71285680).

142571354 is an equidigital number, since it uses as much as digits as its factorization.

142571354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71285679.

The product of its digits is 16800, while the sum is 32.

The square root of 142571354 is about 11940.3247024526. The cubic root of 142571354 is about 522.4091295922.

The spelling of 142571354 in words is "one hundred forty-two million, five hundred seventy-one thousand, three hundred fifty-four".

Divisors: 1 2 71285677 142571354