Search a number
-
+
31003001301 = 310334333767
BaseRepresentation
bin11100110111111011…
…000100000111010101
32222000122121122111110
4130313323010013111
51001443232020201
622124221525233
72145166106616
oct346773040725
988018548443
1031003001301
111216a427828
126012a13819
132c011133ac
141701737c0d
15c16bee6d6
hex737ec41d5

31003001301 has 4 divisors (see below), whose sum is σ = 41337335072. Its totient is φ = 20668667532.

The previous prime is 31003001291. The next prime is 31003001311. The reversal of 31003001301 is 10310030013.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10310030013 = 33436676671.

It is an interprime number because it is at equal distance from previous prime (31003001291) and next prime (31003001311).

It is not a de Polignac number, because 31003001301 - 27 = 31003001173 is a prime.

It is a super-2 number, since 2×310030013012 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31003001311) 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, 5167166881 + ... + 5167166886.

It is an arithmetic number, because the mean of its divisors is an integer number (10334333768).

Almost surely, 231003001301 is an apocalyptic number.

It is an amenable number.

31003001301 is a deficient number, since it is larger than the sum of its proper divisors (10334333771).

31003001301 is a wasteful number, since it uses less digits than its factorization.

31003001301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10334333770.

The product of its (nonzero) digits is 27, while the sum is 12.

Adding to 31003001301 its reverse (10310030013), we get a palindrome (41313031314).

The spelling of 31003001301 in words is "thirty-one billion, three million, one thousand, three hundred one".

Divisors: 1 3 10334333767 31003001301