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120630642 = 23111827737
BaseRepresentation
bin1110011000010…
…10110101110010
322101222200010120
413030022311302
5221340140032
615545311110
72663225556
oct714126562
9271880116
10120630642
1162102650
1234495496
131bcb7ca2
1412041866
15a8cc62c
hex730ad72

120630642 has 16 divisors (see below), whose sum is σ = 263194272. Its totient is φ = 36554720.

The previous prime is 120630637. The next prime is 120630647. The reversal of 120630642 is 246036021.

It is an interprime number because it is at equal distance from previous prime (120630637) and next prime (120630647).

It is not an unprimeable number, because it can be changed into a prime (120630647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913803 + ... + 913934.

It is an arithmetic number, because the mean of its divisors is an integer number (16449642).

Almost surely, 2120630642 is an apocalyptic number.

120630642 is an abundant number, since it is smaller than the sum of its proper divisors (142563630).

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

120630642 is a wasteful number, since it uses less digits than its factorization.

120630642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827753.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 120630642 is about 10983.1981681111. The cubic root of 120630642 is about 494.1049594765.

Adding to 120630642 its reverse (246036021), we get a palindrome (366666663).

The spelling of 120630642 in words is "one hundred twenty million, six hundred thirty thousand, six hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 1827737 3655474 5483211 10966422 20105107 40210214 60315321 120630642