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2990666252 = 227106809509
BaseRepresentation
bin1011001001000001…
…1111001000001100
321201102110120211202
42302100133020030
522111102310002
61212432205032
7134053146410
oct26220371014
97642416752
102990666252
1112a5175902
126b5699778
13388797002
14205296d40
1512784d502
hexb241f20c

2990666252 has 12 divisors (see below), whose sum is σ = 5981332560. Its totient is φ = 1281714096.

The previous prime is 2990666251. The next prime is 2990666269. The reversal of 2990666252 is 2526660992.

2990666252 is an admirable number.

It is a hoax number, since the sum of its digits (47) 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 = 2990666197 and 2990666206.

It is not an unprimeable number, because it can be changed into a prime (2990666251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53404727 + ... + 53404782.

It is an arithmetic number, because the mean of its divisors is an integer number (498444380).

Almost surely, 22990666252 is an apocalyptic number.

It is an amenable number.

2990666252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2990666252 is a wasteful number, since it uses less digits than its factorization.

2990666252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106809520 (or 106809518 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 47.

The square root of 2990666252 is about 54686.9843015685. The cubic root of 2990666252 is about 1440.7522837502.

The spelling of 2990666252 in words is "two billion, nine hundred ninety million, six hundred sixty-six thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 106809509 213619018 427238036 747666563 1495333126 2990666252