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120302220 = 22352005037
BaseRepresentation
bin1110010101110…
…10101010001100
322101100222121210
413022322222030
5221244132340
615534254420
72660360223
oct712725214
9271328553
10120302220
11619a8925
1234357410
131bc0165c
1411d97cba
15a865180
hex72baa8c

120302220 has 24 divisors (see below), whose sum is σ = 336846384. Its totient is φ = 32080576.

The previous prime is 120302197. The next prime is 120302263. The reversal of 120302220 is 22203021.

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 = 120302196 and 120302205.

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, 1002459 + ... + 1002578.

It is an arithmetic number, because the mean of its divisors is an integer number (14035266).

Almost surely, 2120302220 is an apocalyptic number.

120302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120302220 is an abundant number, since it is smaller than the sum of its proper divisors (216544164).

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

120302220 is a wasteful number, since it uses less digits than its factorization.

120302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005049 (or 2005047 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 120302220 is about 10968.2368683394. The cubic root of 120302220 is about 493.6561447413.

Adding to 120302220 its reverse (22203021), we get a palindrome (142505241).

The spelling of 120302220 in words is "one hundred twenty million, three hundred two thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2005037 4010074 6015111 8020148 10025185 12030222 20050370 24060444 30075555 40100740 60151110 120302220