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120393424 = 2419396031
BaseRepresentation
bin1110010110100…
…00111011010000
322101112121201201
413023100323100
5221310042144
615540240544
72661220144
oct713207320
9271477651
10120393424
1161a603a8
12343a0154
131bc34018
1411dbd224
15a8821d4
hex72d0ed0

120393424 has 20 divisors (see below), whose sum is σ = 245539840. Its totient is φ = 57028320.

The previous prime is 120393419. The next prime is 120393437. The reversal of 120393424 is 424393021.

It is a junction number, because it is equal to n+sod(n) for n = 120393392 and 120393401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197712 + ... + 198319.

It is an arithmetic number, because the mean of its divisors is an integer number (12276992).

Almost surely, 2120393424 is an apocalyptic number.

It is an amenable number.

120393424 is an abundant number, since it is smaller than the sum of its proper divisors (125146416).

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

120393424 is a wasteful number, since it uses less digits than its factorization.

120393424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396058 (or 396052 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 120393424 is about 10972.3937224290. The cubic root of 120393424 is about 493.7808640857.

The spelling of 120393424 in words is "one hundred twenty million, three hundred ninety-three thousand, four hundred twenty-four".

Divisors: 1 2 4 8 16 19 38 76 152 304 396031 792062 1584124 3168248 6336496 7524589 15049178 30098356 60196712 120393424