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1401493 = 4729819
BaseRepresentation
bin101010110001010010101
32122012111011
411112022111
5324321433
650012221
714624662
oct5261225
92565434
101401493
11877a65
12577071
133a0bb2
14286a69
151ca3cd
hex156295

1401493 has 4 divisors (see below), whose sum is σ = 1431360. Its totient is φ = 1371628.

The previous prime is 1401487. The next prime is 1401511. The reversal of 1401493 is 3941041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3941041 = 13303157.

It is a cyclic number.

It is not a de Polignac number, because 1401493 - 25 = 1401461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14863 + ... + 14956.

It is an arithmetic number, because the mean of its divisors is an integer number (357840).

21401493 is an apocalyptic number.

It is an amenable number.

1401493 is a deficient number, since it is larger than the sum of its proper divisors (29867).

1401493 is an equidigital number, since it uses as much as digits as its factorization.

1401493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29866.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1401493 is about 1183.8466961562. The cubic root of 1401493 is about 111.9086468087.

The spelling of 1401493 in words is "one million, four hundred one thousand, four hundred ninety-three".

Divisors: 1 47 29819 1401493