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142552011511 = 71315319102259
BaseRepresentation
bin1000010011000011000…
…0110001001011110111
3111121221200202111102001
42010300300301023313
54313421303332021
6145253144200131
713204400051050
oct2046060611367
9447850674361
10142552011511
1155501992168
1223764469047
131059a502290
146c8453b727
153a94cc3091
hex2130c312f7

142552011511 has 16 divisors (see below), whose sum is σ = 175461798400. Its totient is φ = 112779939168.

The previous prime is 142552011491. The next prime is 142552011517. The reversal of 142552011511 is 115110255241.

It is not a de Polignac number, because 142552011511 - 211 = 142552009463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142552011511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142552011517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1342900 + ... + 1445158.

It is an arithmetic number, because the mean of its divisors is an integer number (10966362400).

Almost surely, 2142552011511 is an apocalyptic number.

142552011511 is a deficient number, since it is larger than the sum of its proper divisors (32909786889).

142552011511 is a wasteful number, since it uses less digits than its factorization.

142552011511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117598.

The product of its (nonzero) digits is 2000, while the sum is 28.

Adding to 142552011511 its reverse (115110255241), we get a palindrome (257662266752).

The spelling of 142552011511 in words is "one hundred forty-two billion, five hundred fifty-two million, eleven thousand, five hundred eleven".

Divisors: 1 7 13 91 15319 102259 107233 199147 715813 1329367 1394029 9305569 1566505621 10965539347 20364573073 142552011511