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30351355145 = 518133537409
BaseRepresentation
bin11100010001000101…
…001110110100001001
32220100020102121000122
4130101011032310021
5444124421331040
621535422513025
72123064155606
oct342105166411
986306377018
1030351355145
1111965604391
125a70735775
132b29104057
14167cd896ad
15bc98ce1b5
hex71114ed09

30351355145 has 8 divisors (see below), whose sum is σ = 36622851720. Its totient is φ = 24146933760.

The previous prime is 30351355121. The next prime is 30351355157. The reversal of 30351355145 is 54155315303.

It can be written as a sum of positive squares in 4 ways, for example, as 1125401209 + 29225953936 = 33547^2 + 170956^2 .

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

It is not a de Polignac number, because 30351355145 - 212 = 30351351049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16767800 + ... + 16769609.

It is an arithmetic number, because the mean of its divisors is an integer number (4577856465).

Almost surely, 230351355145 is an apocalyptic number.

It is an amenable number.

30351355145 is a deficient number, since it is larger than the sum of its proper divisors (6271496575).

30351355145 is a wasteful number, since it uses less digits than its factorization.

30351355145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33537595.

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 30351355145 in words is "thirty billion, three hundred fifty-one million, three hundred fifty-five thousand, one hundred forty-five".

Divisors: 1 5 181 905 33537409 167687045 6070271029 30351355145