Search a number
-
+
142392404 = 227112771669
BaseRepresentation
bin10000111110010…
…11110001010100
3100220221021122202
420133023301110
5242423024104
622043544032
73346213130
oct1037136124
9326837582
10142392404
1173416580
123b82b018
132366727b
1414ca83c0
15c77a51e
hex87cbc54

142392404 has 48 divisors (see below), whose sum is σ = 311982720. Its totient is φ = 55244160.

The previous prime is 142392389. The next prime is 142392421. The reversal of 142392404 is 404293241.

142392404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84482 + ... + 86150.

It is an arithmetic number, because the mean of its divisors is an integer number (6499640).

Almost surely, 2142392404 is an apocalyptic number.

142392404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142392404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155991360).

142392404 is an abundant number, since it is smaller than the sum of its proper divisors (169590316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142392404 is a wasteful number, since it uses less digits than its factorization.

142392404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968 (or 1966 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 142392404 is about 11932.8288347734. The cubic root of 142392404 is about 522.1904688974.

The spelling of 142392404 in words is "one hundred forty-two million, three hundred ninety-two thousand, four hundred four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 277 308 554 1108 1669 1939 3047 3338 3878 6094 6676 7756 11683 12188 18359 21329 23366 36718 42658 46732 73436 85316 128513 257026 462313 514052 924626 1849252 3236191 5085443 6472382 10170886 12944764 20341772 35598101 71196202 142392404