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112420020 = 22351979511
BaseRepresentation
bin1101011001101…
…10010010110100
321211112112021110
412230312102310
5212234420040
615053315020
72533361106
oct654662264
9254475243
10112420020
1158504909
1231795a70
131a3a1a2b
1410d05576
159d09980
hex6b364b4

112420020 has 48 divisors (see below), whose sum is σ = 316407168. Its totient is φ = 29823360.

The previous prime is 112420013. The next prime is 112420027. The reversal of 112420020 is 20024211.

It is an interprime number because it is at equal distance from previous prime (112420013) and next prime (112420027).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 112419978 and 112420005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112420027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7065 + ... + 16575.

It is an arithmetic number, because the mean of its divisors is an integer number (6591816).

Almost surely, 2112420020 is an apocalyptic number.

112420020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112420020 is an abundant number, since it is smaller than the sum of its proper divisors (203987148).

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

112420020 is a wasteful number, since it uses less digits than its factorization.

112420020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9720 (or 9718 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 112420020 is about 10602.8307540958. The cubic root of 112420020 is about 482.6302654175.

Adding to 112420020 its reverse (20024211), we get a palindrome (132444231).

The spelling of 112420020 in words is "one hundred twelve million, four hundred twenty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 197 394 591 788 985 1182 1970 2364 2955 3940 5910 9511 11820 19022 28533 38044 47555 57066 95110 114132 142665 190220 285330 570660 1873667 3747334 5621001 7494668 9368335 11242002 18736670 22484004 28105005 37473340 56210010 112420020