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185480307 = 3326212
BaseRepresentation
bin10110000111000…
…11010001110011
3110221000101011000
423003203101303
5334440332212
630223253043
74411361625
oct1303432163
9427011130
10185480307
1195776111
125214a183
132c57247c
141a8c2c15
151143c1dc
hexb0e3473

185480307 has 12 divisors (see below), whose sum is σ = 274890520. Its totient is φ = 123606360.

The previous prime is 185480249. The next prime is 185480341. The reversal of 185480307 is 703084581.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

185480307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 185480307 - 27 = 185480179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (185480507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69457 + ... + 72077.

Almost surely, 2185480307 is an apocalyptic number.

185480307 is a deficient number, since it is larger than the sum of its proper divisors (89410213).

185480307 is an frugal number, since it uses more digits than its factorization.

185480307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5251 (or 2624 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 185480307 is about 13619.1154999141. The cubic root of 185480307 is about 570.2946122424.

The spelling of 185480307 in words is "one hundred eighty-five million, four hundred eighty thousand, three hundred seven".

Divisors: 1 3 9 27 2621 7863 23589 70767 6869641 20608923 61826769 185480307