Search a number
-
+
142312516143 = 37172571551107
BaseRepresentation
bin1000010010001001111…
…1001010101000101111
3111121100000002212112020
42010202133022220233
54312424001004033
6145213311041223
713165431266610
oct2044237125057
9447300085466
10142312516143
1155399783806
12236b8210213
131055c9ca045
146c607d7c07
153a7dc666b3
hex21227caa2f

142312516143 has 32 divisors (see below), whose sum is σ = 230507057664. Its totient is φ = 76239962112.

The previous prime is 142312516141. The next prime is 142312516183. The reversal of 142312516143 is 341615213241.

It is not a de Polignac number, because 142312516143 - 21 = 142312516141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142312516141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 683805 + ... + 867302.

It is an arithmetic number, because the mean of its divisors is an integer number (7203345552).

Almost surely, 2142312516143 is an apocalyptic number.

142312516143 is a deficient number, since it is larger than the sum of its proper divisors (88194541521).

142312516143 is a wasteful number, since it uses less digits than its factorization.

142312516143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551391.

The product of its digits is 17280, while the sum is 33.

Adding to 142312516143 its reverse (341615213241), we get a palindrome (483927729384).

The spelling of 142312516143 in words is "one hundred forty-two billion, three hundred twelve million, five hundred sixteen thousand, one hundred forty-three".

Divisors: 1 3 7 17 21 51 119 257 357 771 1799 4369 5397 13107 30583 91749 1551107 4653321 10857749 26368819 32573247 79106457 184581733 398634499 553745199 1195903497 2790441493 6776786483 8371324479 20330359449 47437505381 142312516143