Search a number
-
+
2942990808 = 2334612577
BaseRepresentation
bin1010111101101010…
…0111100111011000
321121002202102102120
42233122213213120
522011401201213
61204010301240
7132634003062
oct25732474730
97532672376
102942990808
11128027260a
126a1727820
1337b9439a4
141dcc06732
15123582423
hexaf6a79d8

2942990808 has 48 divisors (see below), whose sum is σ = 7386250440. Its totient is φ = 977172480.

The previous prime is 2942990803. The next prime is 2942990867. The reversal of 2942990808 is 8080992492.

It is a super-2 number, since 2×29429908082 = 17322389791944985728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942990803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5100216 + ... + 5100792.

Almost surely, 22942990808 is an apocalyptic number.

It is an amenable number.

2942990808 is an abundant number, since it is smaller than the sum of its proper divisors (4443259632).

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

2942990808 is an equidigital number, since it uses as much as digits as its factorization.

2942990808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508 (or 1043 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 2942990808 is about 54249.3392402156. The cubic root of 2942990808 is about 1433.0553623327.

The spelling of 2942990808 in words is "two billion, nine hundred forty-two million, nine hundred ninety thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 24 461 577 922 1154 1383 1731 1844 2308 2766 3462 3688 4616 5532 6924 11064 13848 212521 265997 425042 531994 637563 797991 850084 1063988 1275126 1595982 1700168 2127976 2550252 3191964 5100504 6383928 122624617 245249234 367873851 490498468 735747702 980996936 1471495404 2942990808