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2053431 = 34101251
BaseRepresentation
bin111110101010100110111
310212022210000
413311110313
51011202211
6112002343
723311452
oct7652467
93768700
102053431
111182856
128303b3
1356b863
143b6499
152a8656
hex1f5537

2053431 has 20 divisors (see below), whose sum is σ = 3110184. Its totient is φ = 1350000.

The previous prime is 2053427. The next prime is 2053439. The reversal of 2053431 is 1343502.

It is not a de Polignac number, because 2053431 - 22 = 2053427 is a prime.

It is a super-2 number, since 2×20534312 = 8433157743522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2053439) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8056 + ... + 8306.

22053431 is an apocalyptic number.

2053431 is a deficient number, since it is larger than the sum of its proper divisors (1056753).

2053431 is a wasteful number, since it uses less digits than its factorization.

2053431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2053431 is about 1432.9797625926. The cubic root of 2053431 is about 127.1042399598.

Adding to 2053431 its reverse (1343502), we get a palindrome (3396933).

The spelling of 2053431 in words is "two million, fifty-three thousand, four hundred thirty-one".

Divisors: 1 3 9 27 81 101 251 303 753 909 2259 2727 6777 8181 20331 25351 76053 228159 684477 2053431