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554213813 = 1912901643
BaseRepresentation
bin100001000010001…
…010000110110101
31102121211222102112
4201002022012311
52113334320223
6130554420405
716506511466
oct4102120665
91377758375
10554213813
1126492604a
12135731705
138aa8748a
1453868d6d
15339c6778
hex2108a1b5

554213813 has 4 divisors (see below), whose sum is σ = 557115648. Its totient is φ = 551311980.

The previous prime is 554213767. The next prime is 554213827. The reversal of 554213813 is 318312455.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 554213813 - 28 = 554213557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 554213813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554213833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450631 + ... + 1451012.

It is an arithmetic number, because the mean of its divisors is an integer number (139278912).

Almost surely, 2554213813 is an apocalyptic number.

It is an amenable number.

554213813 is a deficient number, since it is larger than the sum of its proper divisors (2901835).

554213813 is a wasteful number, since it uses less digits than its factorization.

554213813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901834.

The product of its digits is 14400, while the sum is 32.

The square root of 554213813 is about 23541.7461756769. The cubic root of 554213813 is about 821.4083536066.

The spelling of 554213813 in words is "five hundred fifty-four million, two hundred thirteen thousand, eight hundred thirteen".

Divisors: 1 191 2901643 554213813