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31100012002 = 279196835519
BaseRepresentation
bin11100111101101101…
…001000010111100010
32222021102011022011101
4130331231020113202
51002143100341002
622142005105014
72150454511633
oct347555102742
988242138141
1031100012002
111220a167364
12603b3b816a
132c1824b387
14171058b88a
15c204b3587
hex73db485e2

31100012002 has 8 divisors (see below), whose sum is σ = 47240524800. Its totient is φ = 15353170404.

The previous prime is 31100011967. The next prime is 31100012033. The reversal of 31100012002 is 20021000113.

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

It is a self number, because there is not a number n which added to its sum of digits gives 31100012002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98417602 + ... + 98417917.

It is an arithmetic number, because the mean of its divisors is an integer number (5905065600).

Almost surely, 231100012002 is an apocalyptic number.

31100012002 is a deficient number, since it is larger than the sum of its proper divisors (16140512798).

31100012002 is a wasteful number, since it uses less digits than its factorization.

31100012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196835600.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 31100012002 its reverse (20021000113), we get a palindrome (51121012115).

The spelling of 31100012002 in words is "thirty-one billion, one hundred million, twelve thousand, two".

Divisors: 1 2 79 158 196835519 393671038 15550006001 31100012002