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554868454 = 2725661923
BaseRepresentation
bin100001000100101…
…001111011100110
31102200002020102111
4201010221323212
52114021242304
6131020431234
716515206200
oct4104517346
91380066374
10554868454
11265232978
121359a851a
138ac5643a
1453999770
1533aa5704
hex21129ee6

554868454 has 12 divisors (see below), whose sum is σ = 968189004. Its totient is φ = 237800724.

The previous prime is 554868451. The next prime is 554868481. The reversal of 554868454 is 454868455.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 554868398 and 554868407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554868451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2830864 + ... + 2831059.

It is an arithmetic number, because the mean of its divisors is an integer number (80682417).

Almost surely, 2554868454 is an apocalyptic number.

554868454 is a deficient number, since it is larger than the sum of its proper divisors (413320550).

554868454 is a wasteful number, since it uses less digits than its factorization.

554868454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661939 (or 5661932 counting only the distinct ones).

The product of its digits is 3072000, while the sum is 49.

The square root of 554868454 is about 23555.6459049630. The cubic root of 554868454 is about 821.7316439985.

Subtracting from 554868454 its reverse (454868455), we obtain a palindrome (99999999).

The spelling of 554868454 in words is "five hundred fifty-four million, eight hundred sixty-eight thousand, four hundred fifty-four".

Divisors: 1 2 7 14 49 98 5661923 11323846 39633461 79266922 277434227 554868454