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102153845401 = 192304992809
BaseRepresentation
bin101111100100011010…
…1111111101010011001
3100202200021111000200121
41133020311333222121
53133202341023101
6114532343233241
710244316234106
oct1371065775231
9322607430617
10102153845401
113a361201023
121796b148821
13982cb0108a
144d31125aad
1529cd38b0a1
hex17c8d7fa99

102153845401 has 12 divisors (see below), whose sum is σ = 107849860500. Its totient is φ = 96744544128.

The previous prime is 102153845347. The next prime is 102153845407. The reversal of 102153845401 is 104548351201.

It can be written as a sum of positive squares in 2 ways, for example, as 50299724176 + 51854121225 = 224276^2 + 227715^2 .

It is not a de Polignac number, because 102153845401 - 223 = 102145456793 is a prime.

It is a super-2 number, since 2×1021538454012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102153845407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1054285 + ... + 1147093.

It is an arithmetic number, because the mean of its divisors is an integer number (8987488375).

Almost surely, 2102153845401 is an apocalyptic number.

It is an amenable number.

102153845401 is a deficient number, since it is larger than the sum of its proper divisors (5696015099).

102153845401 is an equidigital number, since it uses as much as digits as its factorization.

102153845401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95896 (or 95877 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 102153845401 in words is "one hundred two billion, one hundred fifty-three million, eight hundred forty-five thousand, four hundred one".

Divisors: 1 19 361 3049 57931 92809 1100689 1763371 33504049 282974641 5376518179 102153845401