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30005275031 = 1011312267801
BaseRepresentation
bin11011111100011101…
…000010100110010111
32212110010012220100122
4123330131002212113
5442422322300111
621441221102155
72111362425644
oct337435024627
985403186318
1030005275031
11117a8217266
12599485795b
132aa24c1114
14164901cdcb
15ba931bcdb
hex6fc742997

30005275031 has 8 divisors (see below), whose sum is σ = 30533686128. Its totient is φ = 29481400000.

The previous prime is 30005274967. The next prime is 30005275039. The reversal of 30005275031 is 13057250003.

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 30005275031 - 26 = 30005274967 is a prime.

It is a super-2 number, since 2×300052750312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30005275039) 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, 1120670 + ... + 1147131.

It is an arithmetic number, because the mean of its divisors is an integer number (3816710766).

Almost surely, 230005275031 is an apocalyptic number.

30005275031 is a deficient number, since it is larger than the sum of its proper divisors (528411097).

30005275031 is a wasteful number, since it uses less digits than its factorization.

30005275031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268033.

The product of its (nonzero) digits is 3150, while the sum is 26.

The spelling of 30005275031 in words is "thirty billion, five million, two hundred seventy-five thousand, thirty-one".

Divisors: 1 101 131 13231 2267801 229047901 297081931 30005275031