Search a number
-
+
142542413 = 1345723993
BaseRepresentation
bin10000111111100…
…00011001001101
3100221012220102122
420133300121031
5242442324123
622051102325
73350406356
oct1037603115
9327186378
10142542413
1173509252
123b8a19a5
13236ba630
1414d06d2d
15c7a9bc8
hex87f064d

142542413 has 8 divisors (see below), whose sum is σ = 153849528. Its totient is φ = 131284224.

The previous prime is 142542409. The next prime is 142542443. The reversal of 142542413 is 314245241.

142542413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 145924 + 142396489 = 382^2 + 11933^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142542413 - 22 = 142542409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142542403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6056 + ... + 17937.

It is an arithmetic number, because the mean of its divisors is an integer number (19231191).

Almost surely, 2142542413 is an apocalyptic number.

142542413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

142542413 is a deficient number, since it is larger than the sum of its proper divisors (11307115).

142542413 is a wasteful number, since it uses less digits than its factorization.

142542413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24463.

The product of its digits is 3840, while the sum is 26.

The square root of 142542413 is about 11939.1127392282. The cubic root of 142542413 is about 522.3737787186.

Adding to 142542413 its reverse (314245241), we get a palindrome (456787654).

The spelling of 142542413 in words is "one hundred forty-two million, five hundred forty-two thousand, four hundred thirteen".

Divisors: 1 13 457 5941 23993 311909 10964801 142542413