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102214143 = 344726849
BaseRepresentation
bin1100001011110…
…10100111111111
321010100000110000
412011322213333
5202131323033
614050445343
72350543263
oct605724777
9233300400
10102214143
1152773aa9
122a293853
131823a555
14d80a0a3
158e90a13
hex617a9ff

102214143 has 20 divisors (see below), whose sum is σ = 155944800. Its totient is φ = 66690432.

The previous prime is 102214141. The next prime is 102214159. The reversal of 102214143 is 341412201.

It is not a de Polignac number, because 102214143 - 21 = 102214141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102214141) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9618 + ... + 17231.

It is an arithmetic number, because the mean of its divisors is an integer number (7797240).

Almost surely, 2102214143 is an apocalyptic number.

102214143 is a deficient number, since it is larger than the sum of its proper divisors (53730657).

102214143 is an equidigital number, since it uses as much as digits as its factorization.

102214143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26908 (or 26899 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 102214143 is about 10110.1010380708. The cubic root of 102214143 is about 467.5596202572.

Adding to 102214143 its reverse (341412201), we get a palindrome (443626344).

The spelling of 102214143 in words is "one hundred two million, two hundred fourteen thousand, one hundred forty-three".

Divisors: 1 3 9 27 47 81 141 423 1269 3807 26849 80547 241641 724923 1261903 2174769 3785709 11357127 34071381 102214143