Search a number
-
+
208424832 = 27372111953
BaseRepresentation
bin11000110110001…
…00111110000000
3112112012002010020
430123010332000
5411324043312
632403133440
75110403400
oct1433047600
9475162106
10208424832
11a7717730
1259974280
1334246c05
141d976800
151347078c
hexc6c4f80

208424832 has 384 divisors, whose sum is σ = 753494400. Its totient is φ = 50319360.

The previous prime is 208424819. The next prime is 208424833. The reversal of 208424832 is 238424802.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 208424793 and 208424802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208424833) 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, 3932518 + ... + 3932570.

It is an arithmetic number, because the mean of its divisors is an integer number (1962225).

Almost surely, 2208424832 is an apocalyptic number.

208424832 is a gapful number since it is divisible by the number (22) 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 208424832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376747200).

208424832 is an abundant number, since it is smaller than the sum of its proper divisors (545069568).

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

208424832 is a wasteful number, since it uses less digits than its factorization.

208424832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 208424832 is about 14436.9259885891. The cubic root of 208424832 is about 592.9023249780.

The spelling of 208424832 in words is "two hundred eight million, four hundred twenty-four thousand, eight hundred thirty-two".