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107242220 = 2255362111
BaseRepresentation
bin1100110010001…
…10001011101100
321110210110200002
412121012023230
5204423222340
614350323432
72441354351
oct631061354
9243713602
10107242220
1155598738
122bab9578
13192ab047
1410358628
159635715
hex66462ec

107242220 has 12 divisors (see below), whose sum is σ = 225208704. Its totient is φ = 42896880.

The previous prime is 107242217. The next prime is 107242259. The reversal of 107242220 is 22242701.

It is a happy number.

It is a super-3 number, since 3×1072422203 (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5362111 = 107242220 / (1 + 0 + 7 + 2 + 4 + 2 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 107242192 and 107242201.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2681036 + ... + 2681075.

It is an arithmetic number, because the mean of its divisors is an integer number (18767392).

Almost surely, 2107242220 is an apocalyptic number.

107242220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

107242220 is an abundant number, since it is smaller than the sum of its proper divisors (117966484).

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

107242220 is a wasteful number, since it uses less digits than its factorization.

107242220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5362120 (or 5362118 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 107242220 is about 10355.7819598522. The cubic root of 107242220 is about 475.1039034012.

Adding to 107242220 its reverse (22242701), we get a palindrome (129484921).

The spelling of 107242220 in words is "one hundred seven million, two hundred forty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5362111 10724222 21448444 26810555 53621110 107242220