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2008992042 = 232111610669
BaseRepresentation
bin111011110111110…
…1100100100101010
312012000021100222200
41313233230210222
513103300221132
6531203401030
7100533102441
oct16757544452
95160240880
102008992042
11941029502
12480983176
132602a51b5
14150b59d58
15bb58bd7c
hex77bec92a

2008992042 has 12 divisors (see below), whose sum is σ = 4352816130. Its totient is φ = 669664008.

The previous prime is 2008991987. The next prime is 2008992043. The reversal of 2008992042 is 2402998002.

It can be written as a sum of positive squares in only one way, i.e., 1972159281 + 36832761 = 44409^2 + 6069^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2008991988 and 2008992006.

It is not an unprimeable number, because it can be changed into a prime (2008992043) 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 5 ways as a sum of consecutive naturals, for example, 55805317 + ... + 55805352.

Almost surely, 22008992042 is an apocalyptic number.

2008992042 is an abundant number, since it is smaller than the sum of its proper divisors (2343824088).

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

2008992042 is a wasteful number, since it uses less digits than its factorization.

2008992042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111610677 (or 111610674 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 2008992042 is about 44821.7808883137. The cubic root of 2008992042 is about 1261.8064376302.

The spelling of 2008992042 in words is "two billion, eight million, nine hundred ninety-two thousand, forty-two".

Divisors: 1 2 3 6 9 18 111610669 223221338 334832007 669664014 1004496021 2008992042