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2554431 = 311231227
BaseRepresentation
bin1001101111101000111111
311210210000120
421233220333
51123220211
6130430023
730466215
oct11575077
94723016
102554431
111495200
12a32313
136b58c9
144a6cb5
15356d06
hex26fa3f

2554431 has 24 divisors (see below), whose sum is σ = 3881472. Its totient is φ = 1491600.

The previous prime is 2554429. The next prime is 2554439. The reversal of 2554431 is 1344552.

It is not a de Polignac number, because 2554431 - 21 = 2554429 is a prime.

It is a super-2 number, since 2×25544312 = 13050235467522, which contains 22 as substring.

2554431 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2554439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11140 + ... + 11366.

It is an arithmetic number, because the mean of its divisors is an integer number (161728).

22554431 is an apocalyptic number.

2554431 is a deficient number, since it is larger than the sum of its proper divisors (1327041).

2554431 is a wasteful number, since it uses less digits than its factorization.

2554431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 272 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 2554431 is about 1598.2587400043. The cubic root of 2554431 is about 136.6988072996.

Adding to 2554431 its reverse (1344552), we get a palindrome (3898983).

The spelling of 2554431 in words is "two million, five hundred fifty-four thousand, four hundred thirty-one".

Divisors: 1 3 11 31 33 93 121 227 341 363 681 1023 2497 3751 7037 7491 11253 21111 27467 77407 82401 232221 851477 2554431