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20102314 = 210051157
BaseRepresentation
bin100110010101…
…1110010101010
31101211022012011
41030223302222
520121233224
61554510134
7332603221
oct114536252
941738164
1020102314
1110390191
12689534a
13421ab7b
142953cb8
151b71394
hex132bcaa

20102314 has 4 divisors (see below), whose sum is σ = 30153474. Its totient is φ = 10051156.

The previous prime is 20102311. The next prime is 20102321. The reversal of 20102314 is 41320102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41320102 = 220660051.

It can be written as a sum of positive squares in only one way, i.e., 19954089 + 148225 = 4467^2 + 385^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20102294 and 20102303.

It is not an unprimeable number, because it can be changed into a prime (20102311) 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 as a sum of consecutive naturals, namely, 5025577 + ... + 5025580.

Almost surely, 220102314 is an apocalyptic number.

20102314 is a deficient number, since it is larger than the sum of its proper divisors (10051160).

20102314 is a wasteful number, since it uses less digits than its factorization.

20102314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10051159.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20102314 is about 4483.5604155626. The cubic root of 20102314 is about 271.9038461312.

Adding to 20102314 its reverse (41320102), we get a palindrome (61422416).

The spelling of 20102314 in words is "twenty million, one hundred two thousand, three hundred fourteen".

Divisors: 1 2 10051157 20102314