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105449974 = 27291791451
BaseRepresentation
bin1100100100100…
…00100111110110
321100102102011121
412102100213312
5203443344344
614244054154
72420211220
oct622204766
9240372147
10105449974
1154584143
122b39435a
1318b01346
141000d410
1593ce684
hex64909f6

105449974 has 32 divisors (see below), whose sum is σ = 188179200. Its totient is φ = 43360800.

The previous prime is 105449969. The next prime is 105449977. The reversal of 105449974 is 479944501.

It is a super-2 number, since 2×1054499742 = 22239394033201352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105449974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105449977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71949 + ... + 73399.

It is an arithmetic number, because the mean of its divisors is an integer number (5880600).

Almost surely, 2105449974 is an apocalyptic number.

105449974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

105449974 is a deficient number, since it is larger than the sum of its proper divisors (82729226).

105449974 is a wasteful number, since it uses less digits than its factorization.

105449974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1668.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 105449974 is about 10268.8837757567. The cubic root of 105449974 is about 472.4423549769.

The spelling of 105449974 in words is "one hundred five million, four hundred forty-nine thousand, nine hundred seventy-four".

Divisors: 1 2 7 14 29 58 179 203 358 406 1253 1451 2506 2902 5191 10157 10382 20314 36337 42079 72674 84158 259729 294553 519458 589106 1818103 3636206 7532141 15064282 52724987 105449974