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5455831 = 19287149
BaseRepresentation
bin10100110011111111010111
3101021011222211
4110303333113
52344041311
6312534251
764242133
oct24637727
911234884
105455831
113097057
1219b1387
131190404
14a203c3
1572b821
hex533fd7

5455831 has 4 divisors (see below), whose sum is σ = 5743000. Its totient is φ = 5168664.

The previous prime is 5455787. The next prime is 5455837. The reversal of 5455831 is 1385545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5455831 - 29 = 5455319 is a prime.

It is a super-2 number, since 2×54558312 = 59532183801122, which contains 22 as substring.

It is a Duffinian number.

5455831 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5455793 and 5455802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5455837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143556 + ... + 143593.

It is an arithmetic number, because the mean of its divisors is an integer number (1435750).

Almost surely, 25455831 is an apocalyptic number.

5455831 is a deficient number, since it is larger than the sum of its proper divisors (287169).

5455831 is a wasteful number, since it uses less digits than its factorization.

5455831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287168.

The product of its digits is 12000, while the sum is 31.

The square root of 5455831 is about 2335.7720351096. The cubic root of 5455831 is about 176.0436251189.

The spelling of 5455831 in words is "five million, four hundred fifty-five thousand, eight hundred thirty-one".

Divisors: 1 19 287149 5455831