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102243131010 = 2335378678263
BaseRepresentation
bin101111100111000101…
…0100101111010000010
3100202220111111012112000
41133032022211322002
53133343220143020
6114545253044430
710246452163026
oct1371612457202
9322814435460
10102243131010
113a3a7644689
1217995026716
139845462ab7
144d3cd28386
1529d6126090
hex17ce2a5e82

102243131010 has 32 divisors (see below), whose sum is σ = 272648350080. Its totient is φ = 27264834864.

The previous prime is 102243130967. The next prime is 102243131017. The reversal of 102243131010 is 10131342201.

102243131010 is a `hidden beast` number, since 102 + 243 + 1 + 310 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (102243131017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 189338862 + ... + 189339401.

It is an arithmetic number, because the mean of its divisors is an integer number (8520260940).

Almost surely, 2102243131010 is an apocalyptic number.

102243131010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102243131010 is an abundant number, since it is smaller than the sum of its proper divisors (170405219070).

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

102243131010 is a wasteful number, since it uses less digits than its factorization.

102243131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378678279 (or 378678273 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 102243131010 its reverse (10131342201), we get a palindrome (112374473211).

The spelling of 102243131010 in words is "one hundred two billion, two hundred forty-three million, one hundred thirty-one thousand, ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 378678263 757356526 1136034789 1893391315 2272069578 3408104367 3786782630 5680173945 6816208734 10224313101 11360347890 17040521835 20448626202 34081043670 51121565505 102243131010