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3101000311031 = 7443000044433
BaseRepresentation
bin101101001000000010000…
…001011010000011110111
3101222110020001011200110112
4231020002001122003313
5401301322034423111
610332325130413235
7440016451510220
oct55100201320367
911873201150415
103101000311031
11a96143918307
12420bb289121b
1319656665825c
14aa136b46247
15559e66c1e8b
hex2d20205a0f7

3101000311031 has 4 divisors (see below), whose sum is σ = 3544000355472. Its totient is φ = 2658000266592.

The previous prime is 3101000311001. The next prime is 3101000311121. The reversal of 3101000311031 is 1301130001013.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3101000311031 - 234 = 3083820441847 is a prime.

It is a super-2 number, since 2×31010003110312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3101000310997 and 3101000311015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3101000311001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221500022210 + ... + 221500022223.

It is an arithmetic number, because the mean of its divisors is an integer number (886000088868).

Almost surely, 23101000311031 is an apocalyptic number.

3101000311031 is a deficient number, since it is larger than the sum of its proper divisors (443000044441).

3101000311031 is an equidigital number, since it uses as much as digits as its factorization.

3101000311031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443000044440.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 3101000311031 its reverse (1301130001013), we get a palindrome (4402130312044).

The spelling of 3101000311031 in words is "three trillion, one hundred one billion, three hundred eleven thousand, thirty-one".

Divisors: 1 7 443000044433 3101000311031