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213015468 = 22347377687
BaseRepresentation
bin11001011001001…
…01101110101100
3112211211022021210
430230211232230
5414012443333
633045354420
75164413231
oct1454455654
9484738253
10213015468
11aa272746
125b408a10
1335193573
142040d788
1513a7aa63
hexcb25bac

213015468 has 24 divisors (see below), whose sum is σ = 507612672. Its totient is φ = 69494224.

The previous prime is 213015463. The next prime is 213015487. The reversal of 213015468 is 864510312.

It is not an unprimeable number, because it can be changed into a prime (213015463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188280 + ... + 189407.

It is an arithmetic number, because the mean of its divisors is an integer number (21150528).

Almost surely, 2213015468 is an apocalyptic number.

It is an amenable number.

213015468 is an abundant number, since it is smaller than the sum of its proper divisors (294597204).

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

213015468 is a wasteful number, since it uses less digits than its factorization.

213015468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377741 (or 377739 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 213015468 is about 14595.0494346542. The cubic root of 213015468 is about 597.2237180222.

The spelling of 213015468 in words is "two hundred thirteen million, fifteen thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 47 94 141 188 282 564 377687 755374 1133061 1510748 2266122 4532244 17751289 35502578 53253867 71005156 106507734 213015468