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213459672 = 23310386351
BaseRepresentation
bin11001011100100…
…10001011011000
3112212122212121210
430232102023120
5414121202142
633103103120
75201243256
oct1456221330
9485585553
10213459672
11aa546458
125b5a1aa0
13352ba7ca
14204c75d6
1513b1749c
hexcb922d8

213459672 has 32 divisors (see below), whose sum is σ = 538836480. Its totient is φ = 70461600.

The previous prime is 213459671. The next prime is 213459709. The reversal of 213459672 is 276954312.

It is a self number, because there is not a number n which added to its sum of digits gives 213459672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213459671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40704 + ... + 45647.

It is an arithmetic number, because the mean of its divisors is an integer number (16838640).

Almost surely, 2213459672 is an apocalyptic number.

It is an amenable number.

213459672 is an abundant number, since it is smaller than the sum of its proper divisors (325376808).

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

213459672 is a wasteful number, since it uses less digits than its factorization.

213459672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86463 (or 86459 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 213459672 is about 14610.2591352789. The cubic root of 213459672 is about 597.6385626601.

The spelling of 213459672 in words is "two hundred thirteen million, four hundred fifty-nine thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 103 206 309 412 618 824 1236 2472 86351 172702 259053 345404 518106 690808 1036212 2072424 8894153 17788306 26682459 35576612 53364918 71153224 106729836 213459672