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30102131000 = 235330102131
BaseRepresentation
bin11100000010001110…
…100001000100111000
32212200212110200202202
4130002032201010320
5443122121143000
621455001045332
72113646614604
oct340216410470
985625420682
1030102131000
1111847960617
125a01186848
132ab95a3846
141657c32504
15bb2a9edd5
hex7023a1138

30102131000 has 32 divisors (see below), whose sum is σ = 70438988880. Its totient is φ = 12040852000.

The previous prime is 30102130987. The next prime is 30102131009. The reversal of 30102131000 is 13120103.

It is a super-2 number, since 2×301021310002 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30102131009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15050066 + ... + 15052065.

Almost surely, 230102131000 is an apocalyptic number.

It is an amenable number.

30102131000 is an abundant number, since it is smaller than the sum of its proper divisors (40336857880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30102131000 is a wasteful number, since it uses less digits than its factorization.

30102131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30102152 (or 30102138 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 30102131000 its reverse (13120103), we get a palindrome (30115251103).

The spelling of 30102131000 in words is "thirty billion, one hundred two million, one hundred thirty-one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 30102131 60204262 120408524 150510655 240817048 301021310 602042620 752553275 1204085240 1505106550 3010213100 3762766375 6020426200 7525532750 15051065500 30102131000