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142810054 = 271405027
BaseRepresentation
bin10001000001100…
…01101111000110
3100221201111120021
420200301233012
5243024410204
622100525354
73352602562
oct1040615706
9327644507
10142810054
1173681342
123b9b085a
13237823ba
1414d766a2
15c80e154
hex8831bc6

142810054 has 4 divisors (see below), whose sum is σ = 214215084. Its totient is φ = 71405026.

The previous prime is 142810051. The next prime is 142810067. The reversal of 142810054 is 450018241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450018241 = 1797725033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142810051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35702512 + ... + 35702515.

It is an arithmetic number, because the mean of its divisors is an integer number (53553771).

Almost surely, 2142810054 is an apocalyptic number.

142810054 is a deficient number, since it is larger than the sum of its proper divisors (71405030).

142810054 is an equidigital number, since it uses as much as digits as its factorization.

142810054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71405029.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 142810054 is about 11950.3160627659. The cubic root of 142810054 is about 522.7005147547.

Adding to 142810054 its reverse (450018241), we get a palindrome (592828295).

The spelling of 142810054 in words is "one hundred forty-two million, eight hundred ten thousand, fifty-four".

Divisors: 1 2 71405027 142810054