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308048345 = 51143130253
BaseRepresentation
bin10010010111000…
…111000111011001
3210110122110212222
4102113013013121
51112330021340
650322313425
710430240063
oct2227070731
9713573788
10308048345
11148981310
12871b8875
134ba88237
142ccaa733
151c09d8b5
hex125c71d9

308048345 has 16 divisors (see below), whose sum is σ = 412644672. Its totient is φ = 218823360.

The previous prime is 308048341. The next prime is 308048357. The reversal of 308048345 is 543840803.

It is a happy number.

It is not a de Polignac number, because 308048345 - 22 = 308048341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (308048341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62762 + ... + 67491.

It is an arithmetic number, because the mean of its divisors is an integer number (25790292).

Almost surely, 2308048345 is an apocalyptic number.

It is an amenable number.

308048345 is a deficient number, since it is larger than the sum of its proper divisors (104596327).

308048345 is a wasteful number, since it uses less digits than its factorization.

308048345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130312.

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 308048345 is about 17551.3060767568. The cubic root of 308048345 is about 675.3666741214.

The spelling of 308048345 in words is "three hundred eight million, forty-eight thousand, three hundred forty-five".

Divisors: 1 5 11 43 55 215 473 2365 130253 651265 1432783 5600879 7163915 28004395 61609669 308048345