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214404232631 = 1913112077487
BaseRepresentation
bin1100011110101101111…
…1001111010110110111
3202111102012101111222212
43013223133033112313
512003044440421011
6242255042444035
721330064623221
oct3075337172667
9674365344885
10214404232631
1182a23666396
123567766361b
13172ab5c2054
14a53d141411
15589cd0508b
hex31eb7cf5b7

214404232631 has 4 divisors (see below), whose sum is σ = 214516312032. Its totient is φ = 214292153232.

The previous prime is 214404232619. The next prime is 214404232649. The reversal of 214404232631 is 136232404412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214404232631 - 210 = 214404231607 is a prime.

It is a super-2 number, since 2×2144042326312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214404232661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56036831 + ... + 56040656.

It is an arithmetic number, because the mean of its divisors is an integer number (53629078008).

Almost surely, 2214404232631 is an apocalyptic number.

214404232631 is a deficient number, since it is larger than the sum of its proper divisors (112079401).

214404232631 is a wasteful number, since it uses less digits than its factorization.

214404232631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112079400.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 214404232631 in words is "two hundred fourteen billion, four hundred four million, two hundred thirty-two thousand, six hundred thirty-one".

Divisors: 1 1913 112077487 214404232631