Search a number
-
+
1031210323100 = 225216363264437
BaseRepresentation
bin11110000000110001110…
…11001100110010011100
310122120201211011010000122
433000120323030302130
5113343404320314400
62105422000014112
7134334232056446
oct17003073146234
93576654133018
101031210323100
11368374386651
12147a32301338
137632032aa49
1437ca750b496
151bc56769685
hexf018eccc9c

1031210323100 has 36 divisors (see below), whose sum is σ = 2251454819544. Its totient is φ = 409953545280.

The previous prime is 1031210323093. The next prime is 1031210323139. The reversal of 1031210323100 is 13230121301.

It is a super-2 number, since 2×10312103231002 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 31615919 + ... + 31648518.

It is an arithmetic number, because the mean of its divisors is an integer number (62540411654).

Almost surely, 21031210323100 is an apocalyptic number.

1031210323100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031210323100 is an abundant number, since it is smaller than the sum of its proper divisors (1220244496444).

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

1031210323100 is a wasteful number, since it uses less digits than its factorization.

1031210323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63264614 (or 63264607 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1031210323100 its reverse (13230121301), we get a palindrome (1044440444401).

The spelling of 1031210323100 in words is "one trillion, thirty-one billion, two hundred ten million, three hundred twenty-three thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 163 326 652 815 1630 3260 4075 8150 16300 63264437 126528874 253057748 316322185 632644370 1265288740 1581610925 3163221850 6326443700 10312103231 20624206462 41248412924 51560516155 103121032310 206242064620 257802580775 515605161550 1031210323100