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4720261 = 71351871
BaseRepresentation
bin10010000000011010000101
322212210222111
4102000122011
52202022021
6245101021
755056460
oct22003205
98783874
104720261
112734447
1216b7771
13c93670
148ac2d7
156338e1
hex480685

4720261 has 8 divisors (see below), whose sum is σ = 5809664. Its totient is φ = 3734640.

The previous prime is 4720259. The next prime is 4720273. The reversal of 4720261 is 1620274.

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

It is not a de Polignac number, because 4720261 - 21 = 4720259 is a prime.

4720261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4720211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25845 + ... + 26026.

It is an arithmetic number, because the mean of its divisors is an integer number (726208).

Almost surely, 24720261 is an apocalyptic number.

It is an amenable number.

4720261 is a deficient number, since it is larger than the sum of its proper divisors (1089403).

4720261 is a wasteful number, since it uses less digits than its factorization.

4720261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51891.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 4720261 is about 2172.6161649035. The cubic root of 4720261 is about 167.7472223675.

The spelling of 4720261 in words is "four million, seven hundred twenty thousand, two hundred sixty-one".

Divisors: 1 7 13 91 51871 363097 674323 4720261