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308270117 = 19131123853
BaseRepresentation
bin10010010111111…
…101010000100101
3210111001202002202
4102113331100211
51112404120432
650331144245
710432152461
oct2227752045
9714052082
10308270117
111490129a1
12872a5085
134bb3516c
142cd274a1
151c0e4462
hex125fd425

308270117 has 8 divisors (see below), whose sum is σ = 326974560. Its totient is φ = 289813680.

The previous prime is 308270113. The next prime is 308270119. The reversal of 308270117 is 711072803.

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

It is a cyclic number.

It is not a de Polignac number, because 308270117 - 22 = 308270113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 308270117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308270113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59438 + ... + 64415.

It is an arithmetic number, because the mean of its divisors is an integer number (40871820).

Almost surely, 2308270117 is an apocalyptic number.

It is an amenable number.

308270117 is a deficient number, since it is larger than the sum of its proper divisors (18704443).

308270117 is a wasteful number, since it uses less digits than its factorization.

308270117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124003.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 308270117 is about 17557.6227604992. The cubic root of 308270117 is about 675.5287065772.

The spelling of 308270117 in words is "three hundred eight million, two hundred seventy thousand, one hundred seventeen".

Divisors: 1 19 131 2489 123853 2353207 16224743 308270117