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120402124 = 2283362657
BaseRepresentation
bin1110010110100…
…11000011001100
322101120001122221
413023103003030
5221310331444
615540345124
72661254413
oct713230314
9271501587
10120402124
1161a66997
12343a51a4
131bc37c7b
1411dc247a
15a884a84
hex72d30cc

120402124 has 12 divisors (see below), whose sum is σ = 213242904. Its totient is φ = 59475584.

The previous prime is 120402119. The next prime is 120402133. The reversal of 120402124 is 421204021.

It is a super-2 number, since 2×1204021242 = 28993342927422752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120402098 and 120402107.

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, 180997 + ... + 181660.

It is an arithmetic number, because the mean of its divisors is an integer number (17770242).

Almost surely, 2120402124 is an apocalyptic number.

It is an amenable number.

120402124 is a deficient number, since it is larger than the sum of its proper divisors (92840780).

120402124 is a wasteful number, since it uses less digits than its factorization.

120402124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362744 (or 362742 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 120402124 is about 10972.7901647667. The cubic root of 120402124 is about 493.7927578418.

Adding to 120402124 its reverse (421204021), we get a palindrome (541606145).

The spelling of 120402124 in words is "one hundred twenty million, four hundred two thousand, one hundred twenty-four".

Divisors: 1 2 4 83 166 332 362657 725314 1450628 30100531 60201062 120402124