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554342021 = 2331776031
BaseRepresentation
bin100001000010101…
…001011010000101
31102122002111021222
4201002221122011
52113402421041
6131001250125
716510554332
oct4102513205
91378074258
10554342021
11264a03402
12135793945
138ab0093c
145389d989
15339ee74b
hex210a9685

554342021 has 8 divisors (see below), whose sum is σ = 580276224. Its totient is φ = 528560560.

The previous prime is 554341981. The next prime is 554342023. The reversal of 554342021 is 120243455.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 554342021 - 214 = 554325637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554342023) 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 7 ways as a sum of consecutive naturals, for example, 30725 + ... + 45306.

It is an arithmetic number, because the mean of its divisors is an integer number (72534528).

Almost surely, 2554342021 is an apocalyptic number.

It is an amenable number.

554342021 is a deficient number, since it is larger than the sum of its proper divisors (25934203).

554342021 is a wasteful number, since it uses less digits than its factorization.

554342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76371.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 554342021 is about 23544.4690107889. The cubic root of 554342021 is about 821.4716883703.

Adding to 554342021 its reverse (120243455), we get a palindrome (674585476).

The spelling of 554342021 in words is "five hundred fifty-four million, three hundred forty-two thousand, twenty-one".

Divisors: 1 23 317 7291 76031 1748713 24101827 554342021