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102203103220 = 22537920836473
BaseRepresentation
bin101111100101111000…
…1111001011111110100
3100202210201011120201021
41133023301321133310
53133302443300340
6114541303110524
710245455020651
oct1371361713764
9322721146637
10102203103220
113a386a95169
1217983742444
13983a08970a
144d378a8c28
1529d286ae4a
hex17cbc797f4

102203103220 has 48 divisors (see below), whose sum is σ = 215329383360. Its totient is φ = 40747504896.

The previous prime is 102203103181. The next prime is 102203103227. The reversal of 102203103220 is 22301302201.

It is a junction number, because it is equal to n+sod(n) for n = 102203103194 and 102203103203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102203103227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15785904 + ... + 15792376.

It is an arithmetic number, because the mean of its divisors is an integer number (4486028820).

Almost surely, 2102203103220 is an apocalyptic number.

102203103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102203103220 is an abundant number, since it is smaller than the sum of its proper divisors (113126280140).

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

102203103220 is a wasteful number, since it uses less digits than its factorization.

102203103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8944 (or 8942 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 102203103220 its reverse (22301302201), we get a palindrome (124504405421).

The spelling of 102203103220 in words is "one hundred two billion, two hundred three million, one hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 379 758 1516 1895 2083 3790 4166 6473 7580 8332 10415 12946 20830 25892 32365 41660 64730 129460 789457 1578914 2453267 3157828 3947285 4906534 7894570 9813068 12266335 13483259 15789140 24532670 26966518 49065340 53933036 67416295 134832590 269665180 5110155161 10220310322 20440620644 25550775805 51101551610 102203103220