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BaseRepresentation
bin1010011011111101…
…0111101101011010
321020020202112220122
42212333113231122
521214204130132
61142000353242
7126266314421
oct24677275532
97206675818
102801630042
1112084a1132
12662315822
1335857b173
141c812a2b8
15115e5c912
hexa6fd7b5a

2801630042 has 8 divisors (see below), whose sum is σ = 4202818356. Its totient is φ = 1400690592.

The previous prime is 2801630017. The next prime is 2801630071. The reversal of 2801630042 is 2400361082.

It can be written as a sum of positive squares in 2 ways, for example, as 2000683441 + 800946601 = 44729^2 + 28301^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2801629993 and 2801630020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30923 + ... + 80990.

Almost surely, 22801630042 is an apocalyptic number.

2801630042 is a deficient number, since it is larger than the sum of its proper divisors (1401188314).

2801630042 is a wasteful number, since it uses less digits than its factorization.

2801630042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124432.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 2801630042 is about 52930.4264294177. The cubic root of 2801630042 is about 1409.7332027102.

The spelling of 2801630042 in words is "two billion, eight hundred one million, six hundred thirty thousand, forty-two".