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105240235154 = 2232978890731
BaseRepresentation
bin110001000000011001…
…1101000110010010010
3101001122101001212111012
41202000303220302102
53211013000011104
6120202515250522
710413644145005
oct1420063506222
9331571055435
10105240235154
11406a540735a
12184908a9a42
139c023721c2
145144db953c
152b0e2e6d6e
hex1880ce8c92

105240235154 has 16 divisors (see below), whose sum is σ = 170403981120. Its totient is φ = 48596689680.

The previous prime is 105240235109. The next prime is 105240235159. The reversal of 105240235154 is 451532042501.

It is a super-2 number, since 2×1052402351542 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105240235154.

It is not an unprimeable number, because it can be changed into a prime (105240235159) 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, 39444032 + ... + 39446699.

It is an arithmetic number, because the mean of its divisors is an integer number (10650248820).

Almost surely, 2105240235154 is an apocalyptic number.

105240235154 is a deficient number, since it is larger than the sum of its proper divisors (65163745966).

105240235154 is a wasteful number, since it uses less digits than its factorization.

105240235154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78890785.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 105240235154 its reverse (451532042501), we get a palindrome (556772277655).

The spelling of 105240235154 in words is "one hundred five billion, two hundred forty million, two hundred thirty-five thousand, one hundred fifty-four".

Divisors: 1 2 23 29 46 58 667 1334 78890731 157781462 1814486813 2287831199 3628973626 4575662398 52620117577 105240235154