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102445411 = 1017691319
BaseRepresentation
bin1100001101100…
…11000101100011
321010202202200111
412012303011203
5202211223121
614055432151
72352525445
oct606630543
9233682614
10102445411
1152911832
122a385657
13182bb8b3
14d86a495
158ed92e1
hex61b3163

102445411 has 8 divisors (see below), whose sum is σ = 103672800. Its totient is φ = 101222400.

The previous prime is 102445391. The next prime is 102445423. The reversal of 102445411 is 114544201.

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

It is a cyclic number.

It is not a de Polignac number, because 102445411 - 25 = 102445379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102445471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77010 + ... + 78328.

It is an arithmetic number, because the mean of its divisors is an integer number (12959100).

Almost surely, 2102445411 is an apocalyptic number.

102445411 is a deficient number, since it is larger than the sum of its proper divisors (1227389).

102445411 is a wasteful number, since it uses less digits than its factorization.

102445411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 102445411 is about 10121.5320480647. The cubic root of 102445411 is about 467.9119854818.

Adding to 102445411 its reverse (114544201), we get a palindrome (216989612).

The spelling of 102445411 in words is "one hundred two million, four hundred forty-five thousand, four hundred eleven".

Divisors: 1 101 769 1319 77669 133219 1014311 102445411