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20154014 = 229438081
BaseRepresentation
bin100110011100…
…0011010011110
31101220221002222
41030320122132
520124412024
61555545342
7333210026
oct114703236
941827088
1020154014
1110416011
1268bb252
13423856a
142968a86
151b8185e
hex133869e

20154014 has 16 divisors (see below), whose sum is σ = 32004720. Its totient is φ = 9502080.

The previous prime is 20153983. The next prime is 20154019. The reversal of 20154014 is 41045102.

It is a junction number, because it is equal to n+sod(n) for n = 20153983 and 20154001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154019) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1547 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (2000295).

Almost surely, 220154014 is an apocalyptic number.

20154014 is a deficient number, since it is larger than the sum of its proper divisors (11850706).

20154014 is a wasteful number, since it uses less digits than its factorization.

20154014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8155.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20154014 is about 4489.3222205585. The cubic root of 20154014 is about 272.1367446069.

Adding to 20154014 its reverse (41045102), we get a palindrome (61199116).

The spelling of 20154014 in words is "twenty million, one hundred fifty-four thousand, fourteen".

Divisors: 1 2 29 43 58 86 1247 2494 8081 16162 234349 347483 468698 694966 10077007 20154014