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1395969 = 31932411
BaseRepresentation
bin101010100110100000001
32121220220120
411110310001
5324132334
645530453
714602611
oct5246401
92556816
101395969
118738a3
12573a29
1339b523
14284a41
151c8949
hex154d01

1395969 has 8 divisors (see below), whose sum is σ = 1871712. Its totient is φ = 925440.

The previous prime is 1395943. The next prime is 1395983. The reversal of 1395969 is 9695931.

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

It is not a de Polignac number, because 1395969 - 211 = 1393921 is a prime.

It is a super-2 number, since 2×13959692 = 3897458897922, which contains 22 as substring.

1395969 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1395969.

It is not an unprimeable number, because it can be changed into a prime (1395469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627 + ... + 1784.

It is an arithmetic number, because the mean of its divisors is an integer number (233964).

21395969 is an apocalyptic number.

It is an amenable number.

1395969 is a deficient number, since it is larger than the sum of its proper divisors (475743).

1395969 is a wasteful number, since it uses less digits than its factorization.

1395969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607.

The product of its digits is 65610, while the sum is 42.

The square root of 1395969 is about 1181.5113203012. The cubic root of 1395969 is about 111.7614234928.

It can be divided in two parts, 13959 and 69, that added together give a triangular number (14028 = T167).

The spelling of 1395969 in words is "one million, three hundred ninety-five thousand, nine hundred sixty-nine".

Divisors: 1 3 193 579 2411 7233 465323 1395969