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8454145 = 571912713
BaseRepresentation
bin100000010000…
…000000000001
3120220111220111
4200100000001
54131013040
6501111321
7131600440
oct40200001
916814814
108454145
1148547a7
1229b8541
1319a006b
1411a0d57
15b1edea
hex810001

8454145 has 16 divisors (see below), whose sum is σ = 12205440. Its totient is φ = 5491584.

The previous prime is 8454143. The next prime is 8454191. The reversal of 8454145 is 5414548.

It is not a de Polignac number, because 8454145 - 21 = 8454143 is a prime.

8454145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8454143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5692 + ... + 7021.

It is an arithmetic number, because the mean of its divisors is an integer number (762840).

It is a Proth number, since it is equal to 129 ⋅ 216 + 1 and 129 < 216.

Almost surely, 28454145 is an apocalyptic number.

It is an amenable number.

8454145 is a deficient number, since it is larger than the sum of its proper divisors (3751295).

8454145 is a wasteful number, since it uses less digits than its factorization.

8454145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12744.

The product of its digits is 12800, while the sum is 31.

The square root of 8454145 is about 2907.6012450128. The cubic root of 8454145 is about 203.7151043655.

The spelling of 8454145 in words is "eight million, four hundred fifty-four thousand, one hundred forty-five".

Divisors: 1 5 7 19 35 95 133 665 12713 63565 88991 241547 444955 1207735 1690829 8454145