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306381430 = 25104929207
BaseRepresentation
bin10010010000110…
…000001001110110
3210100111210022101
4102100300021312
51111413201210
650222452314
710410125215
oct2220601166
9710453271
10306381430
11147a429a3
128673409a
134b6235b4
142c99507c
151bd6ea3a
hex12430276

306381430 has 16 divisors (see below), whose sum is σ = 552031200. Its totient is φ = 122431552.

The previous prime is 306381409. The next prime is 306381473. The reversal of 306381430 is 34183603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4114 + ... + 25093.

It is an arithmetic number, because the mean of its divisors is an integer number (34501950).

Almost surely, 2306381430 is an apocalyptic number.

306381430 is a deficient number, since it is larger than the sum of its proper divisors (245649770).

306381430 is a wasteful number, since it uses less digits than its factorization.

306381430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30263.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 306381430 is about 17503.7547400551. The cubic root of 306381430 is about 674.1462860514.

The spelling of 306381430 in words is "three hundred six million, three hundred eighty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 1049 2098 5245 10490 29207 58414 146035 292070 30638143 61276286 153190715 306381430