Search a number
-
+
31022444100 = 22352103408147
BaseRepresentation
bin11100111001000101…
…001110111001000100
32222002000012110000010
4130321011032321010
51002013221202400
622130154350220
72145523265304
oct347105167104
988060173003
1031022444100
111217a3a745a
12601942b370
132c0515cccb
141704159604
15c18790450
hex73914ee44

31022444100 has 36 divisors (see below), whose sum is σ = 89758272464. Its totient is φ = 8272651680.

The previous prime is 31022444087. The next prime is 31022444119. The reversal of 31022444100 is 144422013.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 51703774 + ... + 51704373.

Almost surely, 231022444100 is an apocalyptic number.

31022444100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31022444100 is an abundant number, since it is smaller than the sum of its proper divisors (58735828364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31022444100 is a wasteful number, since it uses less digits than its factorization.

31022444100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103408164 (or 103408157 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 31022444100 its reverse (144422013), we get a palindrome (31166866113).

The spelling of 31022444100 in words is "thirty-one billion, twenty-two million, four hundred forty-four thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 103408147 206816294 310224441 413632588 517040735 620448882 1034081470 1240897764 1551122205 2068162940 2585203675 3102244410 5170407350 6204488820 7755611025 10340814700 15511222050 31022444100