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30356387192 = 2319719261667
BaseRepresentation
bin11100010001011000…
…011011010101111000
32220100120220020200202
4130101120123111320
5444132213342232
621540122421332
72123155014365
oct342130332570
986316806622
1030356387192
1111968430aaa
125a72361848
132b2a1765b1
14167d8d946c
15bca075162
hex71161b578

30356387192 has 16 divisors (see below), whose sum is σ = 57207153960. Its totient is φ = 15101146144.

The previous prime is 30356387177. The next prime is 30356387203. The reversal of 30356387192 is 29178365303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9629258 + ... + 9632409.

Almost surely, 230356387192 is an apocalyptic number.

It is an amenable number.

30356387192 is a deficient number, since it is larger than the sum of its proper divisors (26850766768).

30356387192 is a wasteful number, since it uses less digits than its factorization.

30356387192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19261870 (or 19261866 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 30356387192 in words is "thirty billion, three hundred fifty-six million, three hundred eighty-seven thousand, one hundred ninety-two".

Divisors: 1 2 4 8 197 394 788 1576 19261667 38523334 77046668 154093336 3794548399 7589096798 15178193596 30356387192