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105121453354 = 261861651257
BaseRepresentation
bin110000111100110111…
…0100001010100101010
3101001100002120010111021
41201321232201110222
53210242043001404
6120143033323054
710411002416251
oct1417156412452
9331302503437
10105121453354
1140644357885
1218458b6648a
139bb3883908
1451332d9798
152b03b82454
hex1879ba152a

105121453354 has 8 divisors (see below), whose sum is σ = 160267133988. Its totient is φ = 51699075360.

The previous prime is 105121453343. The next prime is 105121453361. The reversal of 105121453354 is 453354121501.

It can be written as a sum of positive squares in 2 ways, for example, as 104623137025 + 498316329 = 323455^2 + 22323^2 .

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

It is a super-2 number, since 2×1051214533542 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 430825507 + ... + 430825750.

Almost surely, 2105121453354 is an apocalyptic number.

105121453354 is a deficient number, since it is larger than the sum of its proper divisors (55145680634).

105121453354 is an equidigital number, since it uses as much as digits as its factorization.

105121453354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861651320.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 105121453354 its reverse (453354121501), we get a palindrome (558475574855).

The spelling of 105121453354 in words is "one hundred five billion, one hundred twenty-one million, four hundred fifty-three thousand, three hundred fifty-four".

Divisors: 1 2 61 122 861651257 1723302514 52560726677 105121453354