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308472 = 23312853
BaseRepresentation
bin1001011010011111000
3120200010220
41023103320
534332342
610340040
72423223
oct1132370
9520126
10308472
111a083a
1212a620
13aa538
14805ba
15615ec
hex4b4f8

308472 has 16 divisors (see below), whose sum is σ = 771240. Its totient is φ = 102816.

The previous prime is 308467. The next prime is 308489. The reversal of 308472 is 274803.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 12853 = 308472 / (3 + 0 + 8 + 4 + 7 + 2).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308472.

It is an unprimeable number.

308472 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6403 + ... + 6450.

2308472 is an apocalyptic number.

It is an amenable number.

308472 is an abundant number, since it is smaller than the sum of its proper divisors (462768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308472 is a wasteful number, since it uses less digits than its factorization.

308472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12862 (or 12858 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 308472 is about 555.4025567100. The cubic root of 308472 is about 67.5676140050.

It can be divided in two parts, 308 and 472, that added together give a triangular number (780 = T39).

The spelling of 308472 in words is "three hundred eight thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 12853 25706 38559 51412 77118 102824 154236 308472