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142530414 = 231317472287
BaseRepresentation
bin10000111111011…
…01011101101110
3100221012021222020
420133231131232
5242441433124
622050531010
73350326365
oct1037553556
9327167866
10142530414
1173500234
123b896a66
13236b5030
1414d027dc
15c7a6379
hex87ed76e

142530414 has 64 divisors (see below), whose sum is σ = 332107776. Its totient is φ = 40379904.

The previous prime is 142530413. The next prime is 142530439. The reversal of 142530414 is 414035241.

It is a super-2 number, since 2×1425304142 = 40629837830022792, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142530413) 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, 61179 + ... + 63465.

It is an arithmetic number, because the mean of its divisors is an integer number (5189184).

Almost surely, 2142530414 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142530414, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166053888).

142530414 is an abundant number, since it is smaller than the sum of its proper divisors (189577362).

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

142530414 is a wasteful number, since it uses less digits than its factorization.

142530414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142530414 is about 11938.6102206245. The cubic root of 142530414 is about 522.3591207682.

Adding to 142530414 its reverse (414035241), we get a palindrome (556565655).

The spelling of 142530414 in words is "one hundred forty-two million, five hundred thirty thousand, four hundred fourteen".

Divisors: 1 2 3 6 13 17 26 34 39 47 51 78 94 102 141 221 282 442 611 663 799 1222 1326 1598 1833 2287 2397 3666 4574 4794 6861 10387 13722 20774 29731 31161 38879 59462 62322 77758 89193 107489 116637 178386 214978 233274 322467 505427 644934 1010854 1397357 1516281 1827313 2794714 3032562 3654626 4192071 5481939 8384142 10963878 23755069 47510138 71265207 142530414