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30533060031 = 3291455724109
BaseRepresentation
bin11100011011111010…
…011000010110111111
32220210220100011021020
4130123322120112333
51000012430410111
622005433235223
72130431504505
oct343372302677
986726304236
1030533060031
1111a49130a11
125b01562b13
132b57953c36
141699168675
15bda822906
hex71be985bf

30533060031 has 16 divisors (see below), whose sum is σ = 42119205600. Its totient is φ = 19651298688.

The previous prime is 30533059951. The next prime is 30533060071. The reversal of 30533060031 is 13006033503.

It is not a de Polignac number, because 30533060031 - 27 = 30533059903 is a prime.

It is a super-2 number, since 2×305330600312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30533059983 and 30533060010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30533060071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254405 + ... + 1278513.

It is an arithmetic number, because the mean of its divisors is an integer number (2632450350).

Almost surely, 230533060031 is an apocalyptic number.

30533060031 is a deficient number, since it is larger than the sum of its proper divisors (11586145569).

30533060031 is a wasteful number, since it uses less digits than its factorization.

30533060031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38698.

The product of its (nonzero) digits is 2430, while the sum is 24.

Adding to 30533060031 its reverse (13006033503), we get a palindrome (43539093534).

The spelling of 30533060031 in words is "thirty billion, five hundred thirty-three million, sixty thousand, thirty-one".

Divisors: 1 3 29 87 14557 24109 43671 72327 422153 699161 1266459 2097483 350954713 1052864139 10177686677 30533060031