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120303020 = 22529415059
BaseRepresentation
bin1110010101110…
…10110110101100
322101101000201102
413022322312230
5221244144040
615534302232
72660362445
oct712726654
9271330642
10120303020
11619a9492
1234357978
131bc01b26
1411d982cc
15a865515
hex72badac

120303020 has 48 divisors (see below), whose sum is σ = 267775200. Its totient is φ = 45319680.

The previous prime is 120303011. The next prime is 120303023. The reversal of 120303020 is 20303021.

It is a super-2 number, since 2×1203030202 = 28945633242240800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120302992 and 120303010.

It is not an unprimeable number, because it can be changed into a prime (120303023) 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, 21251 + ... + 26309.

It is an arithmetic number, because the mean of its divisors is an integer number (5578650).

Almost surely, 2120303020 is an apocalyptic number.

120303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120303020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133887600).

120303020 is an abundant number, since it is smaller than the sum of its proper divisors (147472180).

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

120303020 is a wasteful number, since it uses less digits than its factorization.

120303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5138 (or 5136 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 120303020 is about 10968.2733372213. The cubic root of 120303020 is about 493.6572389966.

Adding to 120303020 its reverse (20303021), we get a palindrome (140606041).

Subtracting from 120303020 its reverse (20303021), we obtain a palindrome (99999999).

The spelling of 120303020 in words is "one hundred twenty million, three hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 29 41 58 82 116 145 164 205 290 410 580 820 1189 2378 4756 5059 5945 10118 11890 20236 23780 25295 50590 101180 146711 207419 293422 414838 586844 733555 829676 1037095 1467110 2074190 2934220 4148380 6015151 12030302 24060604 30075755 60151510 120303020