Search a number
-
+
469385280 = 26345713199
BaseRepresentation
bin11011111110100…
…100000001000000
31012201020020120000
4123332210001000
51430130312110
6114324320000
714426465130
oct3376440100
91181206500
10469385280
11220a57121
12111243000
1376326390
14464a6ac0
152b31c1c0
hex1bfa4040

469385280 has 560 divisors, whose sum is σ = 2065324800. Its totient is φ = 98537472.

The previous prime is 469385263. The next prime is 469385281. The reversal of 469385280 is 82583964.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (469385281) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2358621 + ... + 2358819.

It is an arithmetic number, because the mean of its divisors is an integer number (3688080).

Almost surely, 2469385280 is an apocalyptic number.

469385280 is a gapful number since it is divisible by the number (40) 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 469385280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1032662400).

469385280 is an abundant number, since it is smaller than the sum of its proper divisors (1595939520).

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

469385280 is a wasteful number, since it uses less digits than its factorization.

469385280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 469385280 is about 21665.3012903121. The cubic root of 469385280 is about 777.1588947712.

The spelling of 469385280 in words is "four hundred sixty-nine million, three hundred eighty-five thousand, two hundred eighty".