Search a number
-
+
142711512 = 2335946313
BaseRepresentation
bin10001000000110…
…01101011011000
3100221112111101120
420200121223120
5243013232022
622054445240
73352012356
oct1040315330
9327474346
10142711512
11736142a9
123b963820
13237495a8
1414d4c7d6
15c7ded5c
hex8819ad8

142711512 has 16 divisors (see below), whose sum is σ = 356778840. Its totient is φ = 47570496.

The previous prime is 142711493. The next prime is 142711519. The reversal of 142711512 is 215117241.

It is a super-2 number, since 2×1427115122 = 40733151314652288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5946313 = 142711512 / (1 + 4 + 2 + 7 + 1 + 1 + 5 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142711519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2973133 + ... + 2973180.

Almost surely, 2142711512 is an apocalyptic number.

142711512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142711512 is an abundant number, since it is smaller than the sum of its proper divisors (214067328).

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

142711512 is a wasteful number, since it uses less digits than its factorization.

142711512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5946322 (or 5946318 counting only the distinct ones).

The product of its digits is 560, while the sum is 24.

The square root of 142711512 is about 11946.1923640966. The cubic root of 142711512 is about 522.5802622365.

Adding to 142711512 its reverse (215117241), we get a palindrome (357828753).

It can be divided in two parts, 14271151 and 2, that added together give a triangular number (14271153 = T5342).

The spelling of 142711512 in words is "one hundred forty-two million, seven hundred eleven thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 5946313 11892626 17838939 23785252 35677878 47570504 71355756 142711512