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10312100023220 = 225515605001161
BaseRepresentation
bin1001011000001111100100…
…0011110000101110110100
31100111211022222111010222122
42112003321003300232310
52322423140101220340
633533151403415112
72113011310643402
oct226037103605664
940454288433878
1010312100023220
113316378699906
1211a6679524498
1359a571a6cb88
14279173288472
1512d394a2ddb5
hex960f90f0bb4

10312100023220 has 12 divisors (see below), whose sum is σ = 21655410048804. Its totient is φ = 4124840009280.

The previous prime is 10312100023219. The next prime is 10312100023259. The reversal of 10312100023220 is 2232000121301.

It can be written as a sum of positive squares in 2 ways, for example, as 1236317162404 + 9075782860816 = 1111898^2 + 3012604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 257802500561 + ... + 257802500600.

It is an arithmetic number, because the mean of its divisors is an integer number (1804617504067).

Almost surely, 210312100023220 is an apocalyptic number.

10312100023220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10312100023220 is an abundant number, since it is smaller than the sum of its proper divisors (11343310025584).

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

10312100023220 is a wasteful number, since it uses less digits than its factorization.

10312100023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515605001170 (or 515605001168 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10312100023220 its reverse (2232000121301), we get a palindrome (12544100144521).

The spelling of 10312100023220 in words is "ten trillion, three hundred twelve billion, one hundred million, twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 515605001161 1031210002322 2062420004644 2578025005805 5156050011610 10312100023220