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102444400131 = 373467782649
BaseRepresentation
bin101111101101000101…
…0010111111000000011
3100210102112012201211220
41133122022113320003
53134301231301011
6115021243010123
710254445014333
oct1373212277003
9323375181756
10102444400131
113a4a02140a7
1217a30509943
139878072958
144d5b95b0c3
1529e8b31506
hex17da297e03

102444400131 has 8 divisors (see below), whose sum is σ = 138463664400. Its totient is φ = 67360701312.

The previous prime is 102444400103. The next prime is 102444400153. The reversal of 102444400131 is 131004444201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102444400131 - 26 = 102444400067 is a prime.

It is a super-2 number, since 2×1024444001312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102444405131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233891106 + ... + 233891543.

It is an arithmetic number, because the mean of its divisors is an integer number (17307958050).

Almost surely, 2102444400131 is an apocalyptic number.

102444400131 is a deficient number, since it is larger than the sum of its proper divisors (36019264269).

102444400131 is an equidigital number, since it uses as much as digits as its factorization.

102444400131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467782725.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 102444400131 its reverse (131004444201), we get a palindrome (233448844332).

The spelling of 102444400131 in words is "one hundred two billion, four hundred forty-four million, four hundred thousand, one hundred thirty-one".

Divisors: 1 3 73 219 467782649 1403347947 34148133377 102444400131