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120242454142 = 21914532177753
BaseRepresentation
bin110111111111100000…
…0100011111001111110
3102111100220101120001111
41233333000203321332
53432224032013032
6131123313032234
711454501665536
oct1577700437176
9374326346044
10120242454142
1146aa3804548
121b378b5567a
13b4534b7265
145b6961a4c6
1531db3e8c47
hex1bff023e7e

120242454142 has 16 divisors (see below), whose sum is σ = 189987258960. Its totient is φ = 56917726272.

The previous prime is 120242454119. The next prime is 120242454169. The reversal of 120242454142 is 241454242021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033663 + ... + 1144090.

It is an arithmetic number, because the mean of its divisors is an integer number (11874203685).

Almost surely, 2120242454142 is an apocalyptic number.

120242454142 is a deficient number, since it is larger than the sum of its proper divisors (69744804818).

120242454142 is a wasteful number, since it uses less digits than its factorization.

120242454142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179227.

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 120242454142 its reverse (241454242021), we get a palindrome (361696696163).

The spelling of 120242454142 in words is "one hundred twenty billion, two hundred forty-two million, four hundred fifty-four thousand, one hundred forty-two".

Divisors: 1 2 19 38 1453 2906 27607 55214 2177753 4355506 41377307 82754614 3164275109 6328550218 60121227071 120242454142