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106421180 = 22513938281
BaseRepresentation
bin1100101011111…
…01101110111100
321102020202102012
412111331232330
5204220434210
614320550352
72431364555
oct625755674
9242222365
10106421180
1155087898
122b7823b8
1319081418
14101c332c
159522305
hex657dbbc

106421180 has 24 divisors (see below), whose sum is σ = 225098160. Its totient is φ = 42261120.

The previous prime is 106421179. The next prime is 106421209. The reversal of 106421180 is 81124601.

It is a super-2 number, since 2×1064211802 = 22650935105184800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16361 + ... + 21920.

It is an arithmetic number, because the mean of its divisors is an integer number (9379090).

Almost surely, 2106421180 is an apocalyptic number.

106421180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

106421180 is an abundant number, since it is smaller than the sum of its proper divisors (118676980).

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

106421180 is a wasteful number, since it uses less digits than its factorization.

106421180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38429 (or 38427 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 106421180 is about 10316.0641719602. The cubic root of 106421180 is about 473.8883403539. Note that the first 3 decimals are identical.

Adding to 106421180 its reverse (81124601), we get a palindrome (187545781).

It can be divided in two parts, 106421 and 180, that added together give a palindrome (106601).

The spelling of 106421180 in words is "one hundred six million, four hundred twenty-one thousand, one hundred eighty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 38281 76562 153124 191405 382810 765620 5321059 10642118 21284236 26605295 53210590 106421180