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20387314 = 255718301
BaseRepresentation
bin100110111000…
…1010111110010
31102100210010201
41031301113302
520204343224
62004545414
7335201143
oct115612762
942323121
1020387314
1110565322
1269b226a
1342ba7cc
1429c9aca
151bcaa44
hex13715f2

20387314 has 8 divisors (see below), whose sum is σ = 30637548. Its totient is φ = 10174800.

The previous prime is 20387287. The next prime is 20387357. The reversal of 20387314 is 41378302.

It can be written as a sum of positive squares in 2 ways, for example, as 14311089 + 6076225 = 3783^2 + 2465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8037 + ... + 10264.

Almost surely, 220387314 is an apocalyptic number.

20387314 is a deficient number, since it is larger than the sum of its proper divisors (10250234).

20387314 is a wasteful number, since it uses less digits than its factorization.

20387314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18860.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20387314 is about 4515.2313340514. The cubic root of 20387314 is about 273.1827907217.

The spelling of 20387314 in words is "twenty million, three hundred eighty-seven thousand, three hundred fourteen".

Divisors: 1 2 557 1114 18301 36602 10193657 20387314