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8212413 = 311248861
BaseRepresentation
bin11111010100111110111101
3120110020022110
4133110332331
54100244123
6452004233
7126542616
oct37247675
916406273
108212413
1146aa120
122900679
131917021
14113ac0d
15ac3493
hex7d4fbd

8212413 has 8 divisors (see below), whose sum is σ = 11945376. Its totient is φ = 4977200.

The previous prime is 8212397. The next prime is 8212439. The reversal of 8212413 is 3142128.

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

It is a cyclic number.

It is not a de Polignac number, because 8212413 - 24 = 8212397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8212413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8212453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124398 + ... + 124463.

It is an arithmetic number, because the mean of its divisors is an integer number (1493172).

Almost surely, 28212413 is an apocalyptic number.

It is an amenable number.

8212413 is a deficient number, since it is larger than the sum of its proper divisors (3732963).

8212413 is a wasteful number, since it uses less digits than its factorization.

8212413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248875.

The product of its digits is 384, while the sum is 21.

The square root of 8212413 is about 2865.7307968475. The cubic root of 8212413 is about 201.7546689970.

The spelling of 8212413 in words is "eight million, two hundred twelve thousand, four hundred thirteen".

Divisors: 1 3 11 33 248861 746583 2737471 8212413