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30788544331 = 174817375979
BaseRepresentation
bin11100101011001000…
…111110011101001011
32221110201002002211201
4130223020332131023
51001023331404311
622051041205031
72136653210626
oct345310763513
987421062751
1030788544331
111206a370066
125b73030777
132b9886698c
1416c1070dbd
15c02e8b9c1
hex72b23e74b

30788544331 has 8 divisors (see below), whose sum is σ = 32606489520. Its totient is φ = 28971360768.

The previous prime is 30788544323. The next prime is 30788544359. The reversal of 30788544331 is 13344588703.

It is a happy number.

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 30788544331 - 23 = 30788544323 is a prime.

It is a super-2 number, since 2×307885443312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30788544431) 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, 106101 + ... + 269878.

It is an arithmetic number, because the mean of its divisors is an integer number (4075811190).

Almost surely, 230788544331 is an apocalyptic number.

30788544331 is a deficient number, since it is larger than the sum of its proper divisors (1817945189).

30788544331 is a wasteful number, since it uses less digits than its factorization.

30788544331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380813.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 30788544331 in words is "thirty billion, seven hundred eighty-eight million, five hundred forty-four thousand, three hundred thirty-one".

Divisors: 1 17 4817 81889 375979 6391643 1811090843 30788544331