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100031020030 = 2510003102003
BaseRepresentation
bin101110100101001010…
…0000011101111111110
3100120012100000022201201
41131022110003233332
53114330420120110
6113541551530114
710140601432624
oct1351224035776
9316170008651
10100031020030
11394719a2997
121747822993a
139582080aa6
144bad217514
152906d15b3a
hex174a503bfe

100031020030 has 8 divisors (see below), whose sum is σ = 180055836072. Its totient is φ = 40012408008.

The previous prime is 100031020021. The next prime is 100031020031. The reversal of 100031020030 is 30020130001.

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

It is a super-2 number, since 2×1000310200302 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 10003102003 = 100031020030 / (1 + 0 + 0 + 0 + 3 + 1 + 0 + 2 + 0 + 0 + 3 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 100031019989 and 100031020016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100031020031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5001550992 + ... + 5001551011.

It is an arithmetic number, because the mean of its divisors is an integer number (22506979509).

Almost surely, 2100031020030 is an apocalyptic number.

100031020030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100031020030 is a deficient number, since it is larger than the sum of its proper divisors (80024816042).

100031020030 is a wasteful number, since it uses less digits than its factorization.

100031020030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10003102010.

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 100031020030 its reverse (30020130001), we get a palindrome (130051150031).

The spelling of 100031020030 in words is "one hundred billion, thirty-one million, twenty thousand, thirty".

Divisors: 1 2 5 10 10003102003 20006204006 50015510015 100031020030