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20106754 = 210053377
BaseRepresentation
bin100110010110…
…0111000000010
31101211112021121
41030230320002
520121404004
61554542454
7332622163
oct114547002
941745247
1020106754
1110393558
126897a2a
13421cbb5
14295576a
151b72854
hex132ce02

20106754 has 4 divisors (see below), whose sum is σ = 30160134. Its totient is φ = 10053376.

The previous prime is 20106743. The next prime is 20106763. The reversal of 20106754 is 45760102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10712529 + 9394225 = 3273^2 + 3065^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5026687 + ... + 5026690.

Almost surely, 220106754 is an apocalyptic number.

20106754 is a deficient number, since it is larger than the sum of its proper divisors (10053380).

20106754 is a wasteful number, since it uses less digits than its factorization.

20106754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10053379.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20106754 is about 4484.0555304322. The cubic root of 20106754 is about 271.9238631336.

Adding to 20106754 its reverse (45760102), we get a palindrome (65866856).

The spelling of 20106754 in words is "twenty million, one hundred six thousand, seven hundred fifty-four".

Divisors: 1 2 10053377 20106754