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105406705398 = 2383211660051
BaseRepresentation
bin110001000101010111…
…0101010111011110110
3101002001222022102201210
41202022232222323312
53211333104033043
6120231223302250
710421035133001
oct1421256527366
9332058272653
10105406705398
1140780378975
12185185aa986
139c2a9b99c7
14515d150538
152b1dc2b633
hex188abaaef6

105406705398 has 16 divisors (see below), whose sum is σ = 213353332416. Its totient is φ = 34712248200.

The previous prime is 105406705337. The next prime is 105406705399. The reversal of 105406705398 is 893507604501.

It is a super-2 number, since 2×1054067053982 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105406705399) 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, 105829528 + ... + 105830523.

It is an arithmetic number, because the mean of its divisors is an integer number (13334583276).

Almost surely, 2105406705398 is an apocalyptic number.

105406705398 is an abundant number, since it is smaller than the sum of its proper divisors (107946627018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105406705398 is a wasteful number, since it uses less digits than its factorization.

105406705398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211660139.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 105406705398 in words is "one hundred five billion, four hundred six million, seven hundred five thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 83 166 249 498 211660051 423320102 634980153 1269960306 17567784233 35135568466 52703352699 105406705398