Search a number
-
+
212854470 = 23510170249
BaseRepresentation
bin11001010111111…
…10011011000110
3112211112010102220
430223332123012
5413442320340
633042113210
75163142653
oct1453763306
9484463386
10212854470
11aa172794
125b34b806
13351381ba
14203aac2a
1513a47ed0
hexcafe6c6

212854470 has 32 divisors (see below), whose sum is σ = 515916000. Its totient is φ = 56198400.

The previous prime is 212854469. The next prime is 212854471. The reversal of 212854470 is 74458212.

It is an interprime number because it is at equal distance from previous prime (212854469) and next prime (212854471).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212854471) 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 15 ways as a sum of consecutive naturals, for example, 32095 + ... + 38154.

It is an arithmetic number, because the mean of its divisors is an integer number (16122375).

Almost surely, 2212854470 is an apocalyptic number.

212854470 is an abundant number, since it is smaller than the sum of its proper divisors (303061530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212854470 is a wasteful number, since it uses less digits than its factorization.

212854470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70360.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 212854470 is about 14589.5328917687. The cubic root of 212854470 is about 597.0732186880.

The spelling of 212854470 in words is "two hundred twelve million, eight hundred fifty-four thousand, four hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 101 202 303 505 606 1010 1515 3030 70249 140498 210747 351245 421494 702490 1053735 2107470 7095149 14190298 21285447 35475745 42570894 70951490 106427235 212854470