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4720105 = 51372617
BaseRepresentation
bin10010000000010111101001
322212210202201
4102000113221
52202020410
6245100201
755056145
oct22002751
98783681
104720105
112734315
1216b7661
13c93580
148ac225
1563383a
hex4805e9

4720105 has 8 divisors (see below), whose sum is σ = 6099912. Its totient is φ = 3485568.

The previous prime is 4720099. The next prime is 4720141. The reversal of 4720105 is 5010274.

It can be written as a sum of positive squares in 4 ways, for example, as 929296 + 3790809 = 964^2 + 1947^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 4720105 - 23 = 4720097 is a prime.

It is a super-2 number, since 2×47201052 = 44558782422050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36244 + ... + 36373.

It is an arithmetic number, because the mean of its divisors is an integer number (762489).

Almost surely, 24720105 is an apocalyptic number.

It is an amenable number.

4720105 is a deficient number, since it is larger than the sum of its proper divisors (1379807).

4720105 is a wasteful number, since it uses less digits than its factorization.

4720105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72635.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 4720105 is about 2172.5802631894. The cubic root of 4720105 is about 167.7453743867.

Adding to 4720105 its reverse (5010274), we get a palindrome (9730379).

The spelling of 4720105 in words is "four million, seven hundred twenty thousand, one hundred five".

Divisors: 1 5 13 65 72617 363085 944021 4720105