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20291314 = 210145657
BaseRepresentation
bin100110101100…
…1111011110010
31102011220110011
41031121323302
520143310224
62002525134
7334321231
oct115317362
942156404
1020291314
11104aa18a
1269667aa
134285bc4
1429a2b18
151bac394
hex1359ef2

20291314 has 4 divisors (see below), whose sum is σ = 30436974. Its totient is φ = 10145656.

The previous prime is 20291311. The next prime is 20291317. The reversal of 20291314 is 41319202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41319202 = 220659601.

It is an interprime number because it is at equal distance from previous prime (20291311) and next prime (20291317).

It can be written as a sum of positive squares in only one way, i.e., 11189025 + 9102289 = 3345^2 + 3017^2 .

It is not an unprimeable number, because it can be changed into a prime (20291311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5072827 + ... + 5072830.

Almost surely, 220291314 is an apocalyptic number.

20291314 is a deficient number, since it is larger than the sum of its proper divisors (10145660).

20291314 is a wasteful number, since it uses less digits than its factorization.

20291314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10145659.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20291314 is about 4504.5881054765. The cubic root of 20291314 is about 272.7533272550.

The spelling of 20291314 in words is "twenty million, two hundred ninety-one thousand, three hundred fourteen".

Divisors: 1 2 10145657 20291314