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120239028 = 2232713172127
BaseRepresentation
bin1110010101010…
…11001110110100
322101020202221100
413022223032310
5221240122103
615533050100
72660005050
oct712531664
9271222840
10120239028
11619653a8
1234326930
131bbab970
1411d7cc60
15a8515a3
hex72ab3b4

120239028 has 216 divisors, whose sum is σ = 400504832. Its totient is φ = 29611008.

The previous prime is 120239023. The next prime is 120239039. The reversal of 120239028 is 820932021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120238992 and 120239010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120239023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 946701 + ... + 946827.

Almost surely, 2120239028 is an apocalyptic number.

120239028 is a gapful number since it is divisible by the number (18) 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 120239028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200252416).

120239028 is an abundant number, since it is smaller than the sum of its proper divisors (280265804).

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

120239028 is a wasteful number, since it uses less digits than its factorization.

120239028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 120239028 is about 10965.3558081806. The cubic root of 120239028 is about 493.5696941817.

The spelling of 120239028 in words is "one hundred twenty million, two hundred thirty-nine thousand, twenty-eight".