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4018252 = 227143509
BaseRepresentation
bin1111010101000001001100
321120011000011
433111001030
52012041002
6222043004
746104010
oct17250114
97504004
104018252
1122a4a77
121419464
13aa8c84
14768540
155458d7
hex3d504c

4018252 has 12 divisors (see below), whose sum is σ = 8036560. Its totient is φ = 1722096.

The previous prime is 4018249. The next prime is 4018277. The reversal of 4018252 is 2528104.

4018252 is an admirable number.

It is a super-2 number, since 2×40182522 = 32292698271008, which contains 22 as substring.

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, 71727 + ... + 71782.

Almost surely, 24018252 is an apocalyptic number.

It is an amenable number.

4018252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4018252 is a wasteful number, since it uses less digits than its factorization.

4018252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143520 (or 143518 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 4018252 is about 2004.5578065997. The cubic root of 4018252 is about 158.9811825891.

The spelling of 4018252 in words is "four million, eighteen thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 143509 287018 574036 1004563 2009126 4018252