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2154494 = 21099883
BaseRepresentation
bin1000001101111111111110
311001110102002
420031333332
51022420434
6114102302
724212216
oct10157776
94043362
102154494
111241781
1287a992
135a5864
14401246
152c857e
hex20dffe

2154494 has 8 divisors (see below), whose sum is σ = 3261720. Its totient is φ = 1067256.

The previous prime is 2154491. The next prime is 2154499. The reversal of 2154494 is 4944512.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4724 + ... + 5159.

It is an arithmetic number, because the mean of its divisors is an integer number (407715).

22154494 is an apocalyptic number.

2154494 is a deficient number, since it is larger than the sum of its proper divisors (1107226).

2154494 is a wasteful number, since it uses less digits than its factorization.

2154494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994.

The product of its digits is 5760, while the sum is 29.

The square root of 2154494 is about 1467.8194711885. The cubic root of 2154494 is about 129.1561516703.

The spelling of 2154494 in words is "two million, one hundred fifty-four thousand, four hundred ninety-four".

Divisors: 1 2 109 218 9883 19766 1077247 2154494