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120430042 = 2376432531
BaseRepresentation
bin1110010110110…
…01110111011010
322101121110221221
413023121313122
5221312230132
615541122254
72661431665
oct713316732
9271543857
10120430042
1161a85967
12343b938a
131bc478a5
1411dcc6dc
15a88ce97
hex72d9dda

120430042 has 16 divisors (see below), whose sum is σ = 185889312. Its totient is φ = 58473360.

The previous prime is 120430007. The next prime is 120430087. The reversal of 120430042 is 240034021.

It is a super-2 number, since 2×1204300422 = 29006790032243528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120429998 and 120430025.

It is an unprimeable number.

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, 46317 + ... + 48847.

It is an arithmetic number, because the mean of its divisors is an integer number (11618082).

Almost surely, 2120430042 is an apocalyptic number.

120430042 is a deficient number, since it is larger than the sum of its proper divisors (65459270).

120430042 is a wasteful number, since it uses less digits than its factorization.

120430042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 120430042 is about 10974.0622378406. The cubic root of 120430042 is about 493.8309206260.

Adding to 120430042 its reverse (240034021), we get a palindrome (360464063).

The spelling of 120430042 in words is "one hundred twenty million, four hundred thirty thousand, forty-two".

Divisors: 1 2 37 74 643 1286 2531 5062 23791 47582 93647 187294 1627433 3254866 60215021 120430042