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2122988 = 22775821
BaseRepresentation
bin1000000110010011101100
310222212012012
420012103230
51020413423
6113300352
724021320
oct10062354
93885165
102122988
11122003a
128646b8
1359440a
143d3980
152be078
hex2064ec

2122988 has 12 divisors (see below), whose sum is σ = 4246032. Its totient is φ = 909840.

The previous prime is 2122979. The next prime is 2123027. The reversal of 2122988 is 8892212.

2122988 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

2122988 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 37883 + ... + 37938.

It is an arithmetic number, because the mean of its divisors is an integer number (353836).

22122988 is an apocalyptic number.

2122988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2122988 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.

2122988 is a wasteful number, since it uses less digits than its factorization.

2122988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75832 (or 75830 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 2122988 is about 1457.0476999742. The cubic root of 2122988 is about 128.5234908883.

The spelling of 2122988 in words is "two million, one hundred twenty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 14 28 75821 151642 303284 530747 1061494 2122988