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31423000201 = 67469000003
BaseRepresentation
bin11101010000111101…
…001110111010001001
310000002220220210200021
4131100331032322021
51003323242001301
622234023540441
72161456044325
oct352075167211
9100086823607
1031423000201
111236551215a
12610b5ba721
132c6a137758
141741426985
15c3da138a1
hex750f4ee89

31423000201 has 4 divisors (see below), whose sum is σ = 31892000272. Its totient is φ = 30954000132.

The previous prime is 31423000181. The next prime is 31423000207. The reversal of 31423000201 is 10200032413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31423000201 - 29 = 31422999689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31423000207) by changing a digit.

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, 234499935 + ... + 234500068.

It is an arithmetic number, because the mean of its divisors is an integer number (7973000068).

Almost surely, 231423000201 is an apocalyptic number.

It is an amenable number.

31423000201 is a deficient number, since it is larger than the sum of its proper divisors (469000071).

31423000201 is an equidigital number, since it uses as much as digits as its factorization.

31423000201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469000070.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31423000201 its reverse (10200032413), we get a palindrome (41623032614).

The spelling of 31423000201 in words is "thirty-one billion, four hundred twenty-three million, two hundred one", and thus it is an aban number.

Divisors: 1 67 469000003 31423000201