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407220485 = 5720815591
BaseRepresentation
bin11000010001011…
…011000100000101
31001101020221111012
4120101123010011
51313222023420
6104224052005
713043213510
oct3021330405
91041227435
10407220485
11199957861
12b4464005
136649bc89
143c123d77
1525b3cdc5
hex1845b105

407220485 has 16 divisors (see below), whose sum is σ = 558842112. Its totient is φ = 279052800.

The previous prime is 407220469. The next prime is 407220511. The reversal of 407220485 is 584022704.

It is not a de Polignac number, because 407220485 - 24 = 407220469 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 70040 + ... + 75630.

It is an arithmetic number, because the mean of its divisors is an integer number (34927632).

Almost surely, 2407220485 is an apocalyptic number.

It is an amenable number.

407220485 is a deficient number, since it is larger than the sum of its proper divisors (151621627).

407220485 is a wasteful number, since it uses less digits than its factorization.

407220485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7684.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 407220485 is about 20179.7047798029. The cubic root of 407220485 is about 741.2133035911.

The spelling of 407220485 in words is "four hundred seven million, two hundred twenty thousand, four hundred eighty-five".

Divisors: 1 5 7 35 2081 5591 10405 14567 27955 39137 72835 195685 11634871 58174355 81444097 407220485