Search a number
-
+
308414400 = 26352767137
BaseRepresentation
bin10010011000100…
…000011111000000
3210111100002000120
4102120200133000
51112423230100
650334220240
710433323230
oct2230403700
9714302016
10308414400
11149101338
1287354680
134bb85a38
142cd63cc0
151c1220a0
hex126207c0

308414400 has 336 divisors, whose sum is σ = 1182233856. Its totient is φ = 68935680.

The previous prime is 308414389. The next prime is 308414401. The reversal of 308414400 is 4414803.

It is a tau number, because it is divible by the number of its divisors (336).

It is a super-3 number, since 3×3084144003 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308414401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2251132 + ... + 2251268.

Almost surely, 2308414400 is an apocalyptic number.

308414400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308414400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (591116928).

308414400 is an abundant number, since it is smaller than the sum of its proper divisors (873819456).

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

308414400 is a wasteful number, since it uses less digits than its factorization.

308414400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 308414400 is about 17561.7311219595. The cubic root of 308414400 is about 675.6340818100.

The spelling of 308414400 in words is "three hundred eight million, four hundred fourteen thousand, four hundred".