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106805080 = 23519140533
BaseRepresentation
bin1100101110110…
…11011101011000
321102222021000201
412113123131120
5204320230310
614333111544
72434554034
oct627333530
9242867021
10106805080
115531a268
122b9285b4
1319187095
14102831c4
15959ae3a
hex65db758

106805080 has 32 divisors (see below), whose sum is σ = 252961200. Its totient is φ = 40473216.

The previous prime is 106805071. The next prime is 106805081. The reversal of 106805080 is 80508601.

It is a happy number.

It is a super-2 number, since 2×1068050802 = 22814650227612800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106805081) 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, 69507 + ... + 71026.

Almost surely, 2106805080 is an apocalyptic number.

106805080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

106805080 is an abundant number, since it is smaller than the sum of its proper divisors (146156120).

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

106805080 is a wasteful number, since it uses less digits than its factorization.

106805080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140563 (or 140559 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 106805080 is about 10334.6543241659. The cubic root of 106805080 is about 474.4574858747.

The spelling of 106805080 in words is "one hundred six million, eight hundred five thousand, eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 140533 281066 562132 702665 1124264 1405330 2670127 2810660 5340254 5621320 10680508 13350635 21361016 26701270 53402540 106805080