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213747468 = 223112147209
BaseRepresentation
bin11001011110110…
…00011100001100
3112220012111101220
430233120130030
5414204404333
633113203340
75203552314
oct1457303414
9486174356
10213747468
11aa722700
125b700550
133538b7bc
1420560444
1513b728b3
hexcbd870c

213747468 has 36 divisors (see below), whose sum is σ = 548210040. Its totient is φ = 64771520.

The previous prime is 213747461. The next prime is 213747481. The reversal of 213747468 is 864747312.

213747468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2137474682 = 91375960152822048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213747461) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72153 + ... + 75056.

Almost surely, 2213747468 is an apocalyptic number.

It is an amenable number.

213747468 is an abundant number, since it is smaller than the sum of its proper divisors (334462572).

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

213747468 is a wasteful number, since it uses less digits than its factorization.

213747468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147238 (or 147225 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 213747468 is about 14620.1049243841. The cubic root of 213747468 is about 597.9070298379.

The spelling of 213747468 in words is "two hundred thirteen million, seven hundred forty-seven thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 121 132 242 363 484 726 1452 147209 294418 441627 588836 883254 1619299 1766508 3238598 4857897 6477196 9715794 17812289 19431588 35624578 53436867 71249156 106873734 213747468