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412813 = 1921727
BaseRepresentation
bin1100100110010001101
3202222021101
41210302031
5101202223
612503101
73336352
oct1446215
9688241
10412813
11262175
1217aa91
13115b8b
14aa629
15824ad
hex64c8d

412813 has 4 divisors (see below), whose sum is σ = 434560. Its totient is φ = 391068.

The previous prime is 412807. The next prime is 412831. The reversal of 412813 is 318214.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-412813 is a prime.

It is a super-3 number, since 3×4128133 = 211048053333155391, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 21727 = 412813 / (4 + 1 + 2 + 8 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412213) 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, 10845 + ... + 10882.

It is an arithmetic number, because the mean of its divisors is an integer number (108640).

2412813 is an apocalyptic number.

It is an amenable number.

412813 is a deficient number, since it is larger than the sum of its proper divisors (21747).

412813 is a wasteful number, since it uses less digits than its factorization.

412813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21746.

The product of its digits is 192, while the sum is 19.

The square root of 412813 is about 642.5052528968. The cubic root of 412813 is about 74.4591010143.

It can be divided in two parts, 412 and 813, that added together give a triangular number (1225 = T49).

The spelling of 412813 in words is "four hundred twelve thousand, eight hundred thirteen".

Divisors: 1 19 21727 412813