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1387670414 = 21353371939
BaseRepresentation
bin101001010110110…
…0010101110001110
310120201010221221112
41102231202232032
510320220423124
6345410332022
746250001224
oct12255425616
93521127845
101387670414
11652338359
1232888a012
13191652770
14d2422b14
1581c5b90e
hex52b62b8e

1387670414 has 8 divisors (see below), whose sum is σ = 2241621480. Its totient is φ = 640463256.

The previous prime is 1387670399. The next prime is 1387670429. The reversal of 1387670414 is 4140767831.

It is an interprime number because it is at equal distance from previous prime (1387670399) and next prime (1387670429).

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

It is a congruent number.

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, 26685944 + ... + 26685995.

It is an arithmetic number, because the mean of its divisors is an integer number (280202685).

Almost surely, 21387670414 is an apocalyptic number.

1387670414 is a deficient number, since it is larger than the sum of its proper divisors (853951066).

1387670414 is a wasteful number, since it uses less digits than its factorization.

1387670414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53371954.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 1387670414 is about 37251.4484819047. The cubic root of 1387670414 is about 1115.3952131141.

The spelling of 1387670414 in words is "one billion, three hundred eighty-seven million, six hundred seventy thousand, four hundred fourteen".

Divisors: 1 2 13 26 53371939 106743878 693835207 1387670414