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105253454 = 252626727
BaseRepresentation
bin1100100011000…
…00101001001110
321100001102121002
412101200221032
5203421102304
614235540302
72415432245
oct621405116
9240042532
10105253454
115445a529
122b2ba692
1318a62a67
14dd9b95c
15939131e
hex6460a4e

105253454 has 4 divisors (see below), whose sum is σ = 157880184. Its totient is φ = 52626726.

The previous prime is 105253433. The next prime is 105253457. The reversal of 105253454 is 454352501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454352501 = 716399331.

It is a super-2 number, since 2×1052534542 = 22156579157860232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105253457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26313362 + ... + 26313365.

It is an arithmetic number, because the mean of its divisors is an integer number (39470046).

Almost surely, 2105253454 is an apocalyptic number.

105253454 is a deficient number, since it is larger than the sum of its proper divisors (52626730).

105253454 is an equidigital number, since it uses as much as digits as its factorization.

105253454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52626729.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 105253454 is about 10259.3106006203. The cubic root of 105253454 is about 472.1486861600.

The spelling of 105253454 in words is "one hundred five million, two hundred fifty-three thousand, four hundred fifty-four".

Divisors: 1 2 52626727 105253454