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142027541 = 1150312347
BaseRepresentation
bin10000111011100…
…10101100010101
3100220020202011022
420131302230111
5242324340131
622032050525
73343133315
oct1035625425
9326222138
10142027541
1173197437
123b693a45
132356a186
1414c11445
15c70737b
hex8772b15

142027541 has 4 divisors (see below), whose sum is σ = 142051392. Its totient is φ = 142003692.

The previous prime is 142027531. The next prime is 142027547. The reversal of 142027541 is 145720241.

142027541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 145720241 = 1094913309.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142027541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142027541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142027547) 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, 5330 + ... + 17676.

It is an arithmetic number, because the mean of its divisors is an integer number (35512848).

Almost surely, 2142027541 is an apocalyptic number.

It is an amenable number.

142027541 is a deficient number, since it is larger than the sum of its proper divisors (23851).

142027541 is a wasteful number, since it uses less digits than its factorization.

142027541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23850.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 142027541 is about 11917.5308264758. The cubic root of 142027541 is about 521.7440711435.

Adding to 142027541 its reverse (145720241), we get a palindrome (287747782).

The spelling of 142027541 in words is "one hundred forty-two million, twenty-seven thousand, five hundred forty-one".

Divisors: 1 11503 12347 142027541