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102210143 = 714601449
BaseRepresentation
bin1100001011110…
…01101001011111
321010022210221212
412011321221133
5202131211033
614050415035
72350525520
oct605715137
9233283855
10102210143
1152770aa2
122a29147b
1318238799
14d808847
158e8e748
hex6179a5f

102210143 has 4 divisors (see below), whose sum is σ = 116811600. Its totient is φ = 87608688.

The previous prime is 102210133. The next prime is 102210151. The reversal of 102210143 is 341012201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341012201 = 1597213533.

It is a cyclic number.

It is not a de Polignac number, because 102210143 - 24 = 102210127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102210133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7300718 + ... + 7300731.

It is an arithmetic number, because the mean of its divisors is an integer number (29202900).

Almost surely, 2102210143 is an apocalyptic number.

102210143 is a deficient number, since it is larger than the sum of its proper divisors (14601457).

102210143 is an equidigital number, since it uses as much as digits as its factorization.

102210143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14601456.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 102210143 is about 10109.9032141757. The cubic root of 102210143 is about 467.5535210918.

Adding to 102210143 its reverse (341012201), we get a palindrome (443222344).

The spelling of 102210143 in words is "one hundred two million, two hundred ten thousand, one hundred forty-three".

Divisors: 1 7 14601449 102210143