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30102131033 = 133762582393
BaseRepresentation
bin11100000010001110…
…100001000101011001
32212200212110200210222
4130002032201011121
5443122121143113
621455001045425
72113646614652
oct340216410531
985625420728
1030102131033
1111847960647
125a01186875
132ab95a3870
141657c32529
15bb2a9ee08
hex7023a1159

30102131033 has 8 divisors (see below), whose sum is σ = 33293833608. Its totient is φ = 27035593344.

The previous prime is 30102131023. The next prime is 30102131041. The reversal of 30102131033 is 33013120103.

It can be written as a sum of positive squares in 4 ways, for example, as 529138009 + 29572993024 = 23003^2 + 171968^2 .

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

It is not a de Polignac number, because 30102131033 - 28 = 30102130777 is a prime.

It is a super-2 number, since 2×301021310332 (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 (30102131023) 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, 31290716 + ... + 31291677.

It is an arithmetic number, because the mean of its divisors is an integer number (4161729201).

Almost surely, 230102131033 is an apocalyptic number.

It is an amenable number.

30102131033 is a deficient number, since it is larger than the sum of its proper divisors (3191702575).

30102131033 is a wasteful number, since it uses less digits than its factorization.

30102131033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62582443.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30102131033 its reverse (33013120103), we get a palindrome (63115251136).

The spelling of 30102131033 in words is "thirty billion, one hundred two million, one hundred thirty-one thousand, thirty-three".

Divisors: 1 13 37 481 62582393 813571109 2315548541 30102131033