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308066133 = 31949910831
BaseRepresentation
bin10010010111001…
…011011101010101
3210110200101021210
4102113023131111
51112331104013
650322532033
710430342664
oct2227133525
9713611253
10308066133
11148993711
1287207019
134ba9336b
142ccb2ddb
151c0a3cc3
hex125cb755

308066133 has 16 divisors (see below), whose sum is σ = 433280000. Its totient is φ = 194160240.

The previous prime is 308066131. The next prime is 308066141. The reversal of 308066133 is 331660803.

It is not a de Polignac number, because 308066133 - 21 = 308066131 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 308066133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308066131) 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, 23028 + ... + 33858.

It is an arithmetic number, because the mean of its divisors is an integer number (27080000).

Almost surely, 2308066133 is an apocalyptic number.

It is an amenable number.

308066133 is a deficient number, since it is larger than the sum of its proper divisors (125213867).

308066133 is a wasteful number, since it uses less digits than its factorization.

308066133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11352.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 308066133 is about 17551.8128123564. The cubic root of 308066133 is about 675.3796733701.

The spelling of 308066133 in words is "three hundred eight million, sixty-six thousand, one hundred thirty-three".

Divisors: 1 3 19 57 499 1497 9481 10831 28443 32493 205789 617367 5404669 16214007 102688711 308066133