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30385370597 = 179971792753
BaseRepresentation
bin11100010011000110…
…111111010111100101
32220102121102202110012
4130103012333113211
5444212123324342
621543035540005
72123656250201
oct342306772745
986377382405
1030385370597
111198282772a
125a7bbba605
132b3318393a
1416836c1b01
15bcc89cb82
hex7131bf5e5

30385370597 has 8 divisors (see below), whose sum is σ = 32205032856. Its totient is φ = 28569295872.

The previous prime is 30385370591. The next prime is 30385370611. The reversal of 30385370597 is 79507358303.

It is a happy number.

It is a Cunningham number, because it is equal to 1743142+1.

It can be written as a sum of positive squares in 4 ways, for example, as 23656285636 + 6729084961 = 153806^2 + 82031^2 .

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

It is not a de Polignac number, because 30385370597 - 24 = 30385370581 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 (30385370591) 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, 879428 + ... + 913325.

It is an arithmetic number, because the mean of its divisors is an integer number (4025629107).

Almost surely, 230385370597 is an apocalyptic number.

It is an amenable number.

30385370597 is a deficient number, since it is larger than the sum of its proper divisors (1819662259).

30385370597 is a wasteful number, since it uses less digits than its factorization.

30385370597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793767.

The product of its (nonzero) digits is 2381400, while the sum is 50.

The spelling of 30385370597 in words is "thirty billion, three hundred eighty-five million, three hundred seventy thousand, five hundred ninety-seven".

Divisors: 1 17 997 16949 1792753 30476801 1787374741 30385370597