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30154132893 = 329671338761
BaseRepresentation
bin11100000101010100…
…111000110110011101
32212211111022122221210
4130011110320312131
5443223424223033
621504055415033
72115150620613
oct340524706635
985744278853
1030154132893
1111874249395
125a16684479
132ac72b01b1
141660acb6b3
15bb7422d63
hex705538d9d

30154132893 has 8 divisors (see below), whose sum is σ = 40206984256. Its totient is φ = 20102018400.

The previous prime is 30154132781. The next prime is 30154132903. The reversal of 30154132893 is 39823145103.

It is a happy number.

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

It is not a de Polignac number, because 30154132893 - 28 = 30154132637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30154132093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80368 + ... + 258393.

It is an arithmetic number, because the mean of its divisors is an integer number (5025873032).

Almost surely, 230154132893 is an apocalyptic number.

It is an amenable number.

30154132893 is a deficient number, since it is larger than the sum of its proper divisors (10052851363).

30154132893 is a wasteful number, since it uses less digits than its factorization.

30154132893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368435.

The product of its (nonzero) digits is 77760, while the sum is 39.

Adding to 30154132893 its reverse (39823145103), we get a palindrome (69977277996).

The spelling of 30154132893 in words is "thirty billion, one hundred fifty-four million, one hundred thirty-two thousand, eight hundred ninety-three".

Divisors: 1 3 29671 89013 338761 1016283 10051377631 30154132893