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120538928 = 2461123503
BaseRepresentation
bin1110010111101…
…00011100110000
322101211000022202
413023310130300
5221324221203
615543322332
72662364306
oct713643460
9271730282
10120538928
116204a754
12344503a8
131bc85313
141201a276
15a8b0388
hex72f4730

120538928 has 20 divisors (see below), whose sum is σ = 237374688. Its totient is φ = 59280960.

The previous prime is 120538927. The next prime is 120538931. The reversal of 120538928 is 829835021.

It is a super-4 number, since 4×1205389284 (a number of 33 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120538891 and 120538900.

It is not an unprimeable number, because it can be changed into a prime (120538927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60776 + ... + 62727.

Almost surely, 2120538928 is an apocalyptic number.

It is an amenable number.

120538928 is a deficient number, since it is larger than the sum of its proper divisors (116835760).

120538928 is a wasteful number, since it uses less digits than its factorization.

120538928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123572 (or 123566 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 120538928 is about 10979.0221786824. The cubic root of 120538928 is about 493.9797070784.

The spelling of 120538928 in words is "one hundred twenty million, five hundred thirty-eight thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 16 61 122 244 488 976 123503 247006 494012 988024 1976048 7533683 15067366 30134732 60269464 120538928