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1374381 = 33109467
BaseRepresentation
bin101001111100010101101
32120211022000
411033202231
5322440011
645242513
714452641
oct5174255
92524260
101374381
11859658
12563439
13391758
1427ac21
151c2356
hex14f8ad

1374381 has 16 divisors (see below), whose sum is σ = 2059200. Its totient is φ = 905904.

The previous prime is 1374379. The next prime is 1374407. The reversal of 1374381 is 1834731.

It is not a de Polignac number, because 1374381 - 21 = 1374379 is a prime.

It is a super-2 number, since 2×13743812 = 3777846266322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374301) 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, 2710 + ... + 3176.

It is an arithmetic number, because the mean of its divisors is an integer number (128700).

21374381 is an apocalyptic number.

It is an amenable number.

1374381 is a deficient number, since it is larger than the sum of its proper divisors (684819).

1374381 is a wasteful number, since it uses less digits than its factorization.

1374381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 579 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1374381 is about 1172.3399677568. The cubic root of 1374381 is about 111.1823154338.

It can be divided in two parts, 13743 and 81, that added together give a cube (13824 = 243).

The spelling of 1374381 in words is "one million, three hundred seventy-four thousand, three hundred eighty-one".

Divisors: 1 3 9 27 109 327 467 981 1401 2943 4203 12609 50903 152709 458127 1374381