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120253420 = 2257858953
BaseRepresentation
bin1110010101011…
…10101111101100
322101021111200101
413022232233230
5221241102140
615533240444
72660065030
oct712565754
9271244611
10120253420
11619751a1
1234333124
131bbb5391
1411d841c0
15a85599a
hex72aebec

120253420 has 24 divisors (see below), whose sum is σ = 288608544. Its totient is φ = 41229696.

The previous prime is 120253403. The next prime is 120253421. The reversal of 120253420 is 24352021.

It is not an unprimeable number, because it can be changed into a prime (120253421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429337 + ... + 429616.

It is an arithmetic number, because the mean of its divisors is an integer number (12025356).

Almost surely, 2120253420 is an apocalyptic number.

120253420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120253420 is an abundant number, since it is smaller than the sum of its proper divisors (168355124).

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

120253420 is a wasteful number, since it uses less digits than its factorization.

120253420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858969 (or 858967 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 120253420 is about 10966.0120371993. The cubic root of 120253420 is about 493.5893859899.

The spelling of 120253420 in words is "one hundred twenty million, two hundred fifty-three thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 858953 1717906 3435812 4294765 6012671 8589530 12025342 17179060 24050684 30063355 60126710 120253420