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106145449 = 211587857
BaseRepresentation
bin1100101001110…
…10011010101001
321101201202011221
412110322122221
5204133123244
614311022041
72426135644
oct624723251
9241652157
10106145449
1154a09713
122b66a921
1318cb5a77
1410150a5b
1594ba784
hex653a6a9

106145449 has 8 divisors (see below), whose sum is σ = 106954848. Its totient is φ = 105339360.

The previous prime is 106145447. The next prime is 106145453. The reversal of 106145449 is 944541601.

It is a happy number.

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 106145449 - 21 = 106145447 is a prime.

It is a super-2 number, since 2×1061454492 = 22533712686823202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106145441) 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, 123429 + ... + 124285.

It is an arithmetic number, because the mean of its divisors is an integer number (13369356).

Almost surely, 2106145449 is an apocalyptic number.

It is an amenable number.

106145449 is a deficient number, since it is larger than the sum of its proper divisors (809399).

106145449 is an equidigital number, since it uses as much as digits as its factorization.

106145449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 106145449 is about 10302.6913474102. The cubic root of 106145449 is about 473.4787141318.

The spelling of 106145449 in words is "one hundred six million, one hundred forty-five thousand, four hundred forty-nine".

Divisors: 1 211 587 857 123857 180827 503059 106145449