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213000312030 = 235113717444743
BaseRepresentation
bin1100011001011111001…
…1101101010011011110
3202100210100122221222120
43012113303231103132
511442211034441110
6241503451523410
721250226531232
oct3062763552336
9670710587876
10213000312030
118237313a030
1235345459566
131711679cbbc
14a4488cc5c2
155819938870
hex3197ced4de

213000312030 has 64 divisors (see below), whose sum is σ = 572745835008. Its totient is φ = 50240856960.

The previous prime is 213000312029. The next prime is 213000312053. The reversal of 213000312030 is 30213000312.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8710162 + ... + 8734581.

It is an arithmetic number, because the mean of its divisors is an integer number (8949153672).

Almost surely, 2213000312030 is an apocalyptic number.

213000312030 is an abundant number, since it is smaller than the sum of its proper divisors (359745522978).

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

213000312030 is a wasteful number, since it uses less digits than its factorization.

213000312030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17444801.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 213000312030 its reverse (30213000312), we get a palindrome (243213312342).

The spelling of 213000312030 in words is "two hundred thirteen billion, three hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 37 55 66 74 110 111 165 185 222 330 370 407 555 814 1110 1221 2035 2442 4070 6105 12210 17444743 34889486 52334229 87223715 104668458 174447430 191892173 261671145 383784346 523342290 575676519 645455491 959460865 1151353038 1290910982 1918921730 1936366473 2878382595 3227277455 3872732946 5756765190 6454554910 7100010401 9681832365 14200020802 19363664730 21300031203 35500052005 42600062406 71000104010 106500156015 213000312030