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105174072 = 233331113139
BaseRepresentation
bin1100100010011…
…01010000111000
321022220101201000
412101031100320
5203411032242
614234125000
72414651643
oct621152070
9238811630
10105174072
1154405923
122b280760
1318a358a3
14dd7aa5a
159377a4c
hex644d438

105174072 has 128 divisors (see below), whose sum is σ = 306432000. Its totient is φ = 33384960.

The previous prime is 105174029. The next prime is 105174073. The reversal of 105174072 is 270471501.

It is a super-2 number, since 2×1051740722 = 22123170842122368, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105174073) 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 in 31 ways as a sum of consecutive naturals, for example, 756579 + ... + 756717.

It is an arithmetic number, because the mean of its divisors is an integer number (2394000).

Almost surely, 2105174072 is an apocalyptic number.

105174072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105174072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153216000).

105174072 is an abundant number, since it is smaller than the sum of its proper divisors (201257928).

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

105174072 is a wasteful number, since it uses less digits than its factorization.

105174072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 105174072 is about 10255.4410924153. The cubic root of 105174072 is about 472.0299583589.

The spelling of 105174072 in words is "one hundred five million, one hundred seventy-four thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 31 36 54 62 72 93 108 113 124 139 186 216 226 248 278 279 339 372 417 452 556 558 678 744 834 837 904 1017 1112 1116 1251 1356 1668 1674 2034 2232 2502 2712 3051 3336 3348 3503 3753 4068 4309 5004 6102 6696 7006 7506 8136 8618 10008 10509 12204 12927 14012 15012 15707 17236 21018 24408 25854 28024 30024 31414 31527 34472 38781 42036 47121 51708 62828 63054 77562 84072 94242 94581 103416 116343 125656 126108 141363 155124 188484 189162 232686 252216 282726 310248 376968 378324 424089 465372 486917 565452 756648 848178 930744 973834 1130904 1460751 1696356 1947668 2921502 3392712 3895336 4382253 5843004 8764506 11686008 13146759 17529012 26293518 35058024 52587036 105174072