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213200303421 = 37281151123911
BaseRepresentation
bin1100011010001110111…
…0100111010100111101
3202101022021222120121010
43012203232213110331
511443113234202141
6241535354225433
721255205451430
oct3064356472475
9671267876533
10213200303421
1182466016576
12353a0425279
13171490532c1
14a4672ab817
15582c290416
hex31a3ba753d

213200303421 has 32 divisors (see below), whose sum is σ = 326262214656. Its totient is φ = 121309776000.

The previous prime is 213200303369. The next prime is 213200303497. The reversal of 213200303421 is 124303002312.

It is not a de Polignac number, because 213200303421 - 214 = 213200287037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213200303221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8904456 + ... + 8928366.

It is an arithmetic number, because the mean of its divisors is an integer number (10195694208).

Almost surely, 2213200303421 is an apocalyptic number.

213200303421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213200303421 is a deficient number, since it is larger than the sum of its proper divisors (113061911235).

213200303421 is a wasteful number, since it uses less digits than its factorization.

213200303421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25713.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 213200303421 its reverse (124303002312), we get a palindrome (337503305733).

The spelling of 213200303421 in words is "two hundred thirteen billion, two hundred million, three hundred three thousand, four hundred twenty-one".

Divisors: 1 3 7 21 281 843 1511 1967 4533 5901 10577 23911 31731 71733 167377 424591 502131 1273773 2972137 6718991 8916411 20156973 36129521 47032937 108388563 141098811 252906647 758719941 10152395401 30457186203 71066767807 213200303421