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308055406 = 2193798071
BaseRepresentation
bin10010010111001…
…000110101101110
3210110122211120111
4102113020311232
51112330233111
650322410234
710430266501
oct2227106556
9713584514
10308055406
1114898664a
128720097a
134ba8b509
142ccad138
151c0a0a21
hex125c8d6e

308055406 has 8 divisors (see below), whose sum is σ = 464477904. Its totient is φ = 153229440.

The previous prime is 308055403. The next prime is 308055409. The reversal of 308055406 is 604550803.

It is an interprime number because it is at equal distance from previous prime (308055403) and next prime (308055409).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308055403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398650 + ... + 399421.

It is an arithmetic number, because the mean of its divisors is an integer number (58059738).

Almost surely, 2308055406 is an apocalyptic number.

308055406 is a deficient number, since it is larger than the sum of its proper divisors (156422498).

308055406 is a wasteful number, since it uses less digits than its factorization.

308055406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798266.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 308055406 is about 17551.5072287254. The cubic root of 308055406 is about 675.3718342721.

The spelling of 308055406 in words is "three hundred eight million, fifty-five thousand, four hundred six".

Divisors: 1 2 193 386 798071 1596142 154027703 308055406