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1630442041 = 19710912071
BaseRepresentation
bin110000100101110…
…1001001000111001
311012121222001000021
41201023221020321
511314343121131
6425442010441
755255346224
oct14113511071
94177861007
101630442041
11767384268
12396046a21
131cca34007
1411677a5bb
1598213e11
hex612e9239

1630442041 has 8 divisors (see below), whose sum is σ = 1716638400. Its totient is φ = 1544284080.

The previous prime is 1630442029. The next prime is 1630442063. The reversal of 1630442041 is 1402440361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1630442041 - 27 = 1630441913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1630441997 and 1630442015.

It is not an unprimeable number, because it can be changed into a prime (1630442071) 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, 129036 + ... + 141106.

It is an arithmetic number, because the mean of its divisors is an integer number (214579800).

Almost surely, 21630442041 is an apocalyptic number.

It is an amenable number.

1630442041 is a deficient number, since it is larger than the sum of its proper divisors (86196359).

1630442041 is a wasteful number, since it uses less digits than its factorization.

1630442041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19199.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1630442041 is about 40378.7325333523. The cubic root of 1630442041 is about 1176.9782978958.

The spelling of 1630442041 in words is "one billion, six hundred thirty million, four hundred forty-two thousand, forty-one".

Divisors: 1 19 7109 12071 135071 229349 85812739 1630442041