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1530142434 = 233473371789
BaseRepresentation
bin101101100110100…
…0001111011100010
310221122020021211000
41123031001323202
511113204024214
6411500132430
752626665442
oct13315017342
93848207730
101530142434
117157a8727
12368537116
131b5017032
1410730c122
158e500809
hex5b341ee2

1530142434 has 64 divisors (see below), whose sum is σ = 3484915200. Its totient is φ = 497435904.

The previous prime is 1530142381. The next prime is 1530142463. The reversal of 1530142434 is 4342410351.

It is a happy number.

1530142434 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1530142398 and 1530142407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 854412 + ... + 856200.

It is an arithmetic number, because the mean of its divisors is an integer number (54451800).

Almost surely, 21530142434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530142434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1742457600).

1530142434 is an abundant number, since it is smaller than the sum of its proper divisors (1954772766).

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

1530142434 is a wasteful number, since it uses less digits than its factorization.

1530142434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184 (or 2178 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1530142434 is about 39117.0350870308. The cubic root of 1530142434 is about 1152.3311087079.

Adding to 1530142434 its reverse (4342410351), we get a palindrome (5872552785).

The spelling of 1530142434 in words is "one billion, five hundred thirty million, one hundred forty-two thousand, four hundred thirty-four".

Divisors: 1 2 3 6 9 18 27 47 54 94 141 282 337 423 674 846 1011 1269 1789 2022 2538 3033 3578 5367 6066 9099 10734 15839 16101 18198 31678 32202 47517 48303 84083 95034 96606 142551 168166 252249 285102 427653 504498 602893 756747 855306 1205786 1513494 1808679 2270241 3617358 4540482 5426037 10852074 16278111 28335971 32556222 56671942 85007913 170015826 255023739 510047478 765071217 1530142434