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30542130392 = 235507693257
BaseRepresentation
bin11100011100011100…
…111110110011011000
32220211112101222110112
4130130130332303120
51000022241133032
622010355503452
72130601552634
oct343434766330
986745358415
1030542130392
1111a53266684
125b045b7b88
132b597ab607
14169a449dc4
15bdb5151b2
hex71c73ecd8

30542130392 has 16 divisors (see below), whose sum is σ = 57276975960. Its totient is φ = 15268270144.

The previous prime is 30542130391. The next prime is 30542130401. The reversal of 30542130392 is 29303124503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30542130391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302573 + ... + 390684.

Almost surely, 230542130392 is an apocalyptic number.

It is an amenable number.

30542130392 is a deficient number, since it is larger than the sum of its proper divisors (26734845568).

30542130392 is a wasteful number, since it uses less digits than its factorization.

30542130392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698770 (or 698766 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 30542130392 its reverse (29303124503), we get a palindrome (59845254895).

The spelling of 30542130392 in words is "thirty billion, five hundred forty-two million, one hundred thirty thousand, three hundred ninety-two".

Divisors: 1 2 4 8 5507 11014 22028 44056 693257 1386514 2773028 5546056 3817766299 7635532598 15271065196 30542130392