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102221141 = 1120114621
BaseRepresentation
bin1100001011111…
…00010101010101
321010100101001012
412011330111111
5202132034031
614050542005
72350602551
oct605742525
9233311035
10102221141
1152779290
122a297905
13182407a9
14d80c861
158e92b2b
hex617c555

102221141 has 8 divisors (see below), whose sum is σ = 111593568. Its totient is φ = 92862000.

The previous prime is 102221137. The next prime is 102221149. The reversal of 102221141 is 141122201.

It is a happy number.

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

It is not a de Polignac number, because 102221141 - 22 = 102221137 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 (102221149) 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, 19811 + ... + 24431.

It is an arithmetic number, because the mean of its divisors is an integer number (13949196).

Almost surely, 2102221141 is an apocalyptic number.

102221141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102221141 is a deficient number, since it is larger than the sum of its proper divisors (9372427).

102221141 is a wasteful number, since it uses less digits than its factorization.

102221141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6643.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 102221141 is about 10110.4471216658. The cubic root of 102221141 is about 467.5702903643.

Adding to 102221141 its reverse (141122201), we get a palindrome (243343342).

The spelling of 102221141 in words is "one hundred two million, two hundred twenty-one thousand, one hundred forty-one".

Divisors: 1 11 2011 4621 22121 50831 9292831 102221141