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142514145 = 32517241773
BaseRepresentation
bin10000111111010…
…01011111100001
3100221011110122200
420133221133201
5242440423040
622050323413
73350231064
oct1037513741
9327143580
10142514145
1173499a94
123b889569
13236aa7c7
1414cda8db
15c7a1630
hex87e97e1

142514145 has 48 divisors (see below), whose sum is σ = 262980432. Its totient is φ = 71147520.

The previous prime is 142514143. The next prime is 142514147. The reversal of 142514145 is 541415241.

142514145 is a `hidden beast` number, since 1 + 4 + 2 + 514 + 145 = 666.

142514145 is nontrivially palindromic in base 2.

It is an interprime number because it is at equal distance from previous prime (142514143) and next prime (142514147).

It can be written as a sum of positive squares in 8 ways, for example, as 451584 + 142062561 = 672^2 + 11919^2 .

It is not a de Polignac number, because 142514145 - 21 = 142514143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142514143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183979 + ... + 184751.

It is an arithmetic number, because the mean of its divisors is an integer number (5478759).

Almost surely, 2142514145 is an apocalyptic number.

142514145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142514145 is a deficient number, since it is larger than the sum of its proper divisors (120466287).

142514145 is a wasteful number, since it uses less digits than its factorization.

142514145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1039 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 142514145 is about 11937.9288404647. The cubic root of 142514145 is about 522.3392452819.

Adding to 142514145 its reverse (541415241), we get a palindrome (683929386).

The spelling of 142514145 in words is "one hundred forty-two million, five hundred fourteen thousand, one hundred forty-five".

Divisors: 1 3 5 9 15 17 45 51 85 153 241 255 723 765 773 1205 2169 2319 3615 3865 4097 6957 10845 11595 12291 13141 20485 34785 36873 39423 61455 65705 118269 184365 186293 197115 558879 591345 931465 1676637 2794395 3166981 8383185 9500943 15834905 28502829 47504715 142514145