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373421 = 2571453
BaseRepresentation
bin1011011001010101101
3200222020102
41123022231
543422141
612000445
73113456
oct1331255
9628212
10373421
11235614
12160125
13100c79
149a12d
157599b

373421 has 4 divisors (see below), whose sum is σ = 375132. Its totient is φ = 371712.

The previous prime is 373393. The next prime is 373447. The reversal of 373421 is 124373.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124373 = 277449.

It can be written as a sum of positive squares in 2 ways, for example, as 366025 + 7396 = 605^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 373421 - 26 = 373357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 373393 and 373402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470 + ... + 983.

It is an arithmetic number, because the mean of its divisors is an integer number (93783).

2373421 is an apocalyptic number.

It is an amenable number.

373421 is a deficient number, since it is larger than the sum of its proper divisors (1711).

373421 is a wasteful number, since it uses less digits than its factorization.

373421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710.

The product of its digits is 504, while the sum is 20.

The square root of 373421 is about 611.0818275812. The cubic root of 373421 is about 72.0111222530.

Adding to 373421 its reverse (124373), we get a palindrome (497794).

The spelling of 373421 in words is "three hundred seventy-three thousand, four hundred twenty-one", and thus it is an iban number.

Divisors: 1 257 1453 373421