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1387038 = 2319233
BaseRepresentation
bin101010010101000011110
32121110122210
411102220132
5323341123
645421250
714534562
oct5225036
92543583
101387038
11868114
1256a826
13397443
142816a2
151c5e93
hex152a1e

1387038 has 32 divisors (see below), whose sum is σ = 3052800. Its totient is φ = 418968.

The previous prime is 1387037. The next prime is 1387039. The reversal of 1387038 is 8307831.

It is an interprime number because it is at equal distance from previous prime (1387037) and next prime (1387039).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1386996 and 1387014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60295 + ... + 60317.

It is an arithmetic number, because the mean of its divisors is an integer number (95400).

21387038 is an apocalyptic number.

1387038 is an abundant number, since it is smaller than the sum of its proper divisors (1665762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1387038 is an equidigital number, since it uses as much as digits as its factorization.

1387038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 1387038 is about 1177.7257745333. The cubic root of 1387038 is about 111.5225744743.

The spelling of 1387038 in words is "one million, three hundred eighty-seven thousand, thirty-eight".

Divisors: 1 2 3 6 19 23 38 46 57 69 114 138 437 529 874 1058 1311 1587 2622 3174 10051 12167 20102 24334 30153 36501 60306 73002 231173 462346 693519 1387038