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2219770072 = 231321343943
BaseRepresentation
bin1000010001001111…
…0000000011011000
312201200220000002101
42010103300003120
514021230120242
61004133213144
7106002506602
oct20423600330
95650800071
102219770072
11a3a003123
1251b4911b4
13294b64220
14170b46172
15ced249b7
hex844f00d8

2219770072 has 16 divisors (see below), whose sum is σ = 4482228240. Its totient is φ = 1024509216.

The previous prime is 2219770031. The next prime is 2219770081. The reversal of 2219770072 is 2700779122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10671868 + ... + 10672075.

It is an arithmetic number, because the mean of its divisors is an integer number (280139265).

Almost surely, 22219770072 is an apocalyptic number.

It is an amenable number.

2219770072 is an abundant number, since it is smaller than the sum of its proper divisors (2262458168).

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

2219770072 is a wasteful number, since it uses less digits than its factorization.

2219770072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21343962 (or 21343958 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 37.

The square root of 2219770072 is about 47114.4359193655. The cubic root of 2219770072 is about 1304.4757115516.

The spelling of 2219770072 in words is "two billion, two hundred nineteen million, seven hundred seventy thousand, seventy-two".

Divisors: 1 2 4 8 13 26 52 104 21343943 42687886 85375772 170751544 277471259 554942518 1109885036 2219770072