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142442054 = 2475412801
BaseRepresentation
bin10000111110101…
…11111001000110
3100221000210202122
420133113321012
5242431121204
622045005542
73346510646
oct1037277106
9327023678
10142442054
117344a907
123b8538b2
1323683a51
1414cbc526
15c78a0be
hex87d7e46

142442054 has 16 divisors (see below), whose sum is σ = 218690496. Its totient is φ = 69552000.

The previous prime is 142442029. The next prime is 142442071. The reversal of 142442054 is 450244241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49454 + ... + 52254.

It is an arithmetic number, because the mean of its divisors is an integer number (13668156).

Almost surely, 2142442054 is an apocalyptic number.

142442054 is a deficient number, since it is larger than the sum of its proper divisors (76248442).

142442054 is a wasteful number, since it uses less digits than its factorization.

142442054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3391.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 142442054 is about 11934.9090486690. The cubic root of 142442054 is about 522.2511550558.

Adding to 142442054 its reverse (450244241), we get a palindrome (592686295).

The spelling of 142442054 in words is "one hundred forty-two million, four hundred forty-two thousand, fifty-four".

Divisors: 1 2 47 94 541 1082 2801 5602 25427 50854 131647 263294 1515341 3030682 71221027 142442054