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7421254213 = 19801148757
BaseRepresentation
bin1101110100101011…
…10101101001000101
3201011012101202221011
412322111311221011
5110144320113323
63224223122221
7351622422442
oct67225655105
921135352834
107421254213
11316911714a
121531443371
139136797a9
145058949c9
152d67ca20d
hex1ba575a45

7421254213 has 8 divisors (see below), whose sum is σ = 7812981920. Its totient is φ = 7029640080.

The previous prime is 7421254153. The next prime is 7421254237. The reversal of 7421254213 is 3124521247.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7421254213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421258213) 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, 127831 + ... + 176587.

It is an arithmetic number, because the mean of its divisors is an integer number (976622740).

Almost surely, 27421254213 is an apocalyptic number.

It is an amenable number.

7421254213 is a deficient number, since it is larger than the sum of its proper divisors (391727707).

7421254213 is a wasteful number, since it uses less digits than its factorization.

7421254213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56787.

The product of its digits is 13440, while the sum is 31.

The square root of 7421254213 is about 86146.7016954219. The cubic root of 7421254213 is about 1950.5590518932.

The spelling of 7421254213 in words is "seven billion, four hundred twenty-one million, two hundred fifty-four thousand, two hundred thirteen".

Divisors: 1 19 8011 48757 152209 926383 390592327 7421254213