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3212133421 = 73171447559
BaseRepresentation
bin1011111101110101…
…0100010000101101
322021212012021200111
42333131110100231
523034301232141
61250423100021
7142412453320
oct27735242055
98255167614
103212133421
1113a9190422
127578a1611
133c2629483
142268667b7
1513bee8381
hexbf75442d

3212133421 has 8 divisors (see below), whose sum is σ = 3682592640. Its totient is φ = 2744569968.

The previous prime is 3212133413. The next prime is 3212133427. The reversal of 3212133421 is 1243312123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3212133421 - 23 = 3212133413 is a prime.

It is a super-2 number, since 2×32121334212 = 20635602228610326482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3212133392 and 3212133401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212133427) 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, 721561 + ... + 725998.

It is an arithmetic number, because the mean of its divisors is an integer number (460324080).

Almost surely, 23212133421 is an apocalyptic number.

It is an amenable number.

3212133421 is a deficient number, since it is larger than the sum of its proper divisors (470459219).

3212133421 is a wasteful number, since it uses less digits than its factorization.

3212133421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447883.

The product of its digits is 864, while the sum is 22.

The square root of 3212133421 is about 56675.6863302069. The cubic root of 3212133421 is about 1475.4727464452.

Adding to 3212133421 its reverse (1243312123), we get a palindrome (4455445544).

The spelling of 3212133421 in words is "three billion, two hundred twelve million, one hundred thirty-three thousand, four hundred twenty-one".

Divisors: 1 7 317 2219 1447559 10132913 458876203 3212133421