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20214754 = 272206273
BaseRepresentation
bin100110100011…
…1001111100010
31102001000102121
41031013033202
520133333004
62001134454
7333552100
oct115071742
942030377
1020214754
111045770a
12692a42a
13425a0c1
142982c70
151b94854
hex13473e2

20214754 has 12 divisors (see below), whose sum is σ = 35272854. Its totient is φ = 8663424.

The previous prime is 20214749. The next prime is 20214767. The reversal of 20214754 is 45741202.

It can be written as a sum of positive squares in only one way, i.e., 20007729 + 207025 = 4473^2 + 455^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103039 + ... + 103234.

Almost surely, 220214754 is an apocalyptic number.

20214754 is a deficient number, since it is larger than the sum of its proper divisors (15058100).

20214754 is a wasteful number, since it uses less digits than its factorization.

20214754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206289 (or 206282 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 20214754 is about 4496.0820722046. The cubic root of 20214754 is about 272.4098582414.

Adding to 20214754 its reverse (45741202), we get a palindrome (65955956).

The spelling of 20214754 in words is "twenty million, two hundred fourteen thousand, seven hundred fifty-four".

Divisors: 1 2 7 14 49 98 206273 412546 1443911 2887822 10107377 20214754