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2220929 = 19412851
BaseRepresentation
bin1000011110001110000001
311011211112122
420132032001
51032032204
6115334025
724610004
oct10361601
94154478
102220929
111287687
128b1315
135c9b79
1441b53b
152dd0be
hex21e381

2220929 has 8 divisors (see below), whose sum is σ = 2395680. Its totient is φ = 2052000.

The previous prime is 2220923. The next prime is 2220941. The reversal of 2220929 is 9290222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2220929 - 24 = 2220913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220898 and 2220907.

It is not an unprimeable number, because it can be changed into a prime (2220923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647 + ... + 2204.

It is an arithmetic number, because the mean of its divisors is an integer number (299460).

22220929 is an apocalyptic number.

It is an amenable number.

2220929 is a deficient number, since it is larger than the sum of its proper divisors (174751).

2220929 is a wasteful number, since it uses less digits than its factorization.

2220929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2911.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 2220929 is about 1490.2781619550. The cubic root of 2220929 is about 130.4702691577.

The spelling of 2220929 in words is "two million, two hundred twenty thousand, nine hundred twenty-nine".

Divisors: 1 19 41 779 2851 54169 116891 2220929