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102431442222 = 232191511983491
BaseRepresentation
bin101111101100101100…
…0111100010100101110
3100210101121211101221100
41133121120330110232
53134234422122342
6115020101143530
710254226615224
oct1373130742456
9323347741840
10102431442222
113a49397368a
1217a280baba6
139875486955
144d59d46b14
1529e7921e4c
hex17d963c52e

102431442222 has 48 divisors (see below), whose sum is σ = 235162811520. Its totient is φ = 32132538000.

The previous prime is 102431442221. The next prime is 102431442247. The reversal of 102431442222 is 222244134201.

It is a happy number.

102431442222 is a `hidden beast` number, since 1 + 0 + 2 + 431 + 4 + 4 + 2 + 222 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102431442221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 940104 + ... + 1043387.

It is an arithmetic number, because the mean of its divisors is an integer number (4899225240).

Almost surely, 2102431442222 is an apocalyptic number.

102431442222 is an abundant number, since it is smaller than the sum of its proper divisors (132731369298).

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

102431442222 is a wasteful number, since it uses less digits than its factorization.

102431442222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983669 (or 1983666 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 102431442222 its reverse (222244134201), we get a palindrome (324675576423).

The spelling of 102431442222 in words is "one hundred two billion, four hundred thirty-one million, four hundred forty-two thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 151 171 302 342 453 906 1359 2718 2869 5738 8607 17214 25821 51642 1983491 3966982 5950473 11900946 17851419 35702838 37686329 75372658 113058987 226117974 299507141 339176961 599014282 678353922 898521423 1797042846 2695564269 5391128538 5690635679 11381271358 17071907037 34143814074 51215721111 102431442222