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142313553 = 32191316353
BaseRepresentation
bin10000111101110…
…00100001010001
3100220210021111100
420132320201101
5242413013203
622042135013
73345434214
oct1036704121
9326707440
10142313553
1173372308
123b7b1469
132363a405
1414c8777b
15c761ea3
hex87b8851

142313553 has 24 divisors (see below), whose sum is σ = 218069280. Its totient is φ = 89182080.

The previous prime is 142313519. The next prime is 142313569. The reversal of 142313553 is 355313241.

It is not a de Polignac number, because 142313553 - 222 = 138119249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142313503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19225 + ... + 25577.

It is an arithmetic number, because the mean of its divisors is an integer number (9086220).

Almost surely, 2142313553 is an apocalyptic number.

It is an amenable number.

142313553 is a deficient number, since it is larger than the sum of its proper divisors (75755727).

142313553 is a wasteful number, since it uses less digits than its factorization.

142313553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6509 (or 6506 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 142313553 is about 11929.5244247204. The cubic root of 142313553 is about 522.0940619678.

Adding to 142313553 its reverse (355313241), we get a palindrome (497626794).

The spelling of 142313553 in words is "one hundred forty-two million, three hundred thirteen thousand, five hundred fifty-three".

Divisors: 1 3 9 19 57 131 171 393 1179 2489 6353 7467 19059 22401 57177 120707 362121 832243 1086363 2496729 7490187 15812617 47437851 142313553