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4720023 = 327311139
BaseRepresentation
bin10010000000010110010111
322212210122200
4102000112113
52202020043
6245055543
755056000
oct22002627
98783580
104720023
112734250
1216b75b3
13c93519
148ac1a7
156337d3
hex480597

4720023 has 48 divisors (see below), whose sum is σ = 8736000. Its totient is φ = 2434320.

The previous prime is 4720019. The next prime is 4720039. The reversal of 4720023 is 3200274.

It is a happy number.

It is not a de Polignac number, because 4720023 - 22 = 4720019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4719978 and 4720005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4720003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33888 + ... + 34026.

It is an arithmetic number, because the mean of its divisors is an integer number (182000).

Almost surely, 24720023 is an apocalyptic number.

4720023 is a deficient number, since it is larger than the sum of its proper divisors (4015977).

4720023 is a wasteful number, since it uses less digits than its factorization.

4720023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 4720023 is about 2172.5613915376. The cubic root of 4720023 is about 167.7444029958.

Adding to 4720023 its reverse (3200274), we get a palindrome (7920297).

It can be divided in two parts, 4 and 720023, that added together give a palindrome (720027).

The spelling of 4720023 in words is "four million, seven hundred twenty thousand, twenty-three".

Divisors: 1 3 7 9 11 21 33 49 63 77 99 139 147 231 343 417 441 539 693 973 1029 1251 1529 1617 2919 3087 3773 4587 4851 6811 8757 10703 11319 13761 20433 32109 33957 47677 61299 74921 96327 143031 224763 429093 524447 674289 1573341 4720023