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30212125165 = 536591651387
BaseRepresentation
bin11100001000110010…
…000111000111101101
32212222112102222101201
4130020302013013231
5443333301001130
621513530405501
72116453553365
oct341062070755
985875388351
1030212125165
11118a3a58892
125a31b90891
132b06306351
1416686a59a5
15bbc57abca
hex708c871ed

30212125165 has 8 divisors (see below), whose sum is σ = 36264480480. Its totient is φ = 24163079952.

The previous prime is 30212125091. The next prime is 30212125183. The reversal of 30212125165 is 56152121203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30212125165 - 29 = 30212124653 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 807399 + ... + 843988.

It is an arithmetic number, because the mean of its divisors is an integer number (4533060060).

Almost surely, 230212125165 is an apocalyptic number.

It is an amenable number.

30212125165 is a deficient number, since it is larger than the sum of its proper divisors (6052355315).

30212125165 is a wasteful number, since it uses less digits than its factorization.

30212125165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655051.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 30212125165 its reverse (56152121203), we get a palindrome (86364246368).

The spelling of 30212125165 in words is "thirty billion, two hundred twelve million, one hundred twenty-five thousand, one hundred sixty-five".

Divisors: 1 5 3659 18295 1651387 8256935 6042425033 30212125165