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120412220 = 22541914369
BaseRepresentation
bin1110010110101…
…01100000111100
322101120120111212
413023111200330
5221311142340
615540503552
72661326015
oct713254074
9271516455
10120412220
1161a73535
12343aabb8
131bc3c746
1411dc600c
15a887a65
hex72d583c

120412220 has 24 divisors (see below), whose sum is σ = 253486800. Its totient is φ = 48046592.

The previous prime is 120412219. The next prime is 120412267. The reversal of 120412220 is 22214021.

It is a junction number, because it is equal to n+sod(n) for n = 120412195 and 120412204.

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, 1196 + ... + 15564.

It is an arithmetic number, because the mean of its divisors is an integer number (10561950).

Almost surely, 2120412220 is an apocalyptic number.

120412220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120412220 is an abundant number, since it is smaller than the sum of its proper divisors (133074580).

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

120412220 is a wasteful number, since it uses less digits than its factorization.

120412220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14797 (or 14795 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 120412220 is about 10973.2502021962. The cubic root of 120412220 is about 493.8065593490.

Adding to 120412220 its reverse (22214021), we get a palindrome (142626241).

The spelling of 120412220 in words is "one hundred twenty million, four hundred twelve thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 419 838 1676 2095 4190 8380 14369 28738 57476 71845 143690 287380 6020611 12041222 24082444 30103055 60206110 120412220