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2990420442 = 232510132569
BaseRepresentation
bin1011001000111110…
…0011000111011010
321201102000002122200
42302033203013122
522111021423232
61212423031030
7134051103642
oct26217430732
97642002580
102990420442
1112a5018159
126b559b476
1338870c169
14205231522
1512780077c
hexb23e31da

2990420442 has 24 divisors (see below), whose sum is σ = 6480713460. Its totient is φ = 996580800.

The previous prime is 2990420437. The next prime is 2990420473. The reversal of 2990420442 is 2440240992.

It can be written as a sum of positive squares in 2 ways, for example, as 2978867241 + 11553201 = 54579^2 + 3399^2 .

It is a super-2 number, since 2×29904204422 = 17885228839862950728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2990420397 and 2990420406.

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 11 ways as a sum of consecutive naturals, for example, 75534 + ... + 108102.

Almost surely, 22990420442 is an apocalyptic number.

2990420442 is an abundant number, since it is smaller than the sum of its proper divisors (3490293018).

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

2990420442 is a wasteful number, since it uses less digits than its factorization.

2990420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37678 (or 37675 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2990420442 is about 54684.7368284789. The cubic root of 2990420442 is about 1440.7128097119.

The spelling of 2990420442 in words is "two billion, nine hundred ninety million, four hundred twenty thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 5101 10202 15303 30606 32569 45909 65138 91818 97707 195414 293121 586242 166134469 332268938 498403407 996806814 1495210221 2990420442