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454394109 = 31311651131
BaseRepresentation
bin11011000101011…
…000000011111101
31011200000121112110
4123011120003331
51412311102414
6113031124233
714155200111
oct3305300375
91150017473
10454394109
11213548024
12108213679
13731a7a70
14444c3741
1529d5a459
hex1b1580fd

454394109 has 8 divisors (see below), whose sum is σ = 652463392. Its totient is φ = 279627120.

The previous prime is 454394099. The next prime is 454394111. The reversal of 454394109 is 901493454.

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

It is not a de Polignac number, because 454394109 - 27 = 454393981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 11651131 = 454394109 / (4 + 5 + 4 + 3 + 9 + 4 + 1 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454394159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5825527 + ... + 5825604.

It is an arithmetic number, because the mean of its divisors is an integer number (81557924).

Almost surely, 2454394109 is an apocalyptic number.

It is an amenable number.

454394109 is a deficient number, since it is larger than the sum of its proper divisors (198069283).

454394109 is a wasteful number, since it uses less digits than its factorization.

454394109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11651147.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 454394109 is about 21316.5219724044. The cubic root of 454394109 is about 768.7956147697.

The spelling of 454394109 in words is "four hundred fifty-four million, three hundred ninety-four thousand, one hundred nine".

Divisors: 1 3 13 39 11651131 34953393 151464703 454394109