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307225471 = 753828101
BaseRepresentation
bin10010010011111…
…110001101111111
3210102002200010011
4102103332031333
51112122203341
650252524051
710420242040
oct2223761577
9712080104
10307225471
1114846a053
1286a80627
134b85a827
142cb348c7
151be89b81
hex124fe37f

307225471 has 8 divisors (see below), whose sum is σ = 357740064. Its totient is φ = 258367200.

The previous prime is 307225447. The next prime is 307225493. The reversal of 307225471 is 174522703.

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

It is not a de Polignac number, because 307225471 - 25 = 307225439 is a prime.

It is a super-3 number, since 3×3072254713 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (307225441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413680 + ... + 414421.

It is an arithmetic number, because the mean of its divisors is an integer number (44717508).

Almost surely, 2307225471 is an apocalyptic number.

307225471 is a deficient number, since it is larger than the sum of its proper divisors (50514593).

307225471 is an equidigital number, since it uses as much as digits as its factorization.

307225471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828161.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 307225471 is about 17527.8484418368. The cubic root of 307225471 is about 674.7647802273.

The spelling of 307225471 in words is "three hundred seven million, two hundred twenty-five thousand, four hundred seventy-one".

Divisors: 1 7 53 371 828101 5796707 43889353 307225471