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1023310302220 = 225173460786969
BaseRepresentation
bin11101110010000100000…
…11000000110000001100
310121211100020212110200201
432321002003000300030
5113231214414132340
62102034031103244
7133634404023553
oct16710203006014
93554306773621
101023310302220
11364a8aa95a78
121463a8671b24
1375661721a8b
143775822ad9a
151b942e1c79a
hexee420c0c0c

1023310302220 has 48 divisors (see below), whose sum is σ = 2275452466560. Its totient is φ = 385230669824.

The previous prime is 1023310302193. The next prime is 1023310302229. The reversal of 1023310302220 is 222030133201.

It is not an unprimeable number, because it can be changed into a prime (1023310302229) 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, 11722896 + ... + 11809864.

It is an arithmetic number, because the mean of its divisors is an integer number (47405259720).

Almost surely, 21023310302220 is an apocalyptic number.

1023310302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023310302220 is an abundant number, since it is smaller than the sum of its proper divisors (1252142164340).

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

1023310302220 is a wasteful number, since it uses less digits than its factorization.

1023310302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121602 (or 121600 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1023310302220 its reverse (222030133201), we get a palindrome (1245340435421).

The spelling of 1023310302220 in words is "one trillion, twenty-three billion, three hundred ten million, three hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 34607 69214 86969 138428 173035 173938 346070 347876 434845 588319 692140 869690 1176638 1478473 1739380 2353276 2941595 2956946 5883190 5913892 7392365 11766380 14784730 29569460 3009736183 6019472366 12038944732 15048680915 30097361830 51165515111 60194723660 102331030222 204662060444 255827575555 511655151110 1023310302220