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4239680 = 26513249
BaseRepresentation
bin10000001011000101000000
321222101202012
4100023011000
52041132210
6230512052
751015404
oct20130500
97871665
104239680
112436375
121505628
13b559b3
147c5104
1558b305
hex40b140

4239680 has 28 divisors (see below), whose sum is σ = 10096500. Its totient is φ = 1695744.

The previous prime is 4239673. The next prime is 4239701. The reversal of 4239680 is 869324.

It can be written as a sum of positive squares in 2 ways, for example, as 1308736 + 2930944 = 1144^2 + 1712^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6305 + ... + 6944.

Almost surely, 24239680 is an apocalyptic number.

4239680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4239680 is an abundant number, since it is smaller than the sum of its proper divisors (5856820).

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

4239680 is a wasteful number, since it uses less digits than its factorization.

4239680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13266 (or 13256 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 4239680 is about 2059.0483238623. The cubic root of 4239680 is about 161.8493748041.

The spelling of 4239680 in words is "four million, two hundred thirty-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 13249 26498 52996 66245 105992 132490 211984 264980 423968 529960 847936 1059920 2119840 4239680