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31225452214 = 2116412214257
BaseRepresentation
bin11101000101001011…
…101001011010110110
32222121011012022210011
4131011023221122312
51002422203432324
622202245450434
72153536651555
oct350513513266
988534168704
1031225452214
1112273a54460
126075410a1a
132c3822b558
1417230c1d9c
15c2b4e0c94
hex7452e96b6

31225452214 has 16 divisors (see below), whose sum is σ = 51175930896. Its totient is φ = 14171238400.

The previous prime is 31225452197. The next prime is 31225452239. The reversal of 31225452214 is 41225452213.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093027 + ... + 1121230.

It is an arithmetic number, because the mean of its divisors is an integer number (3198495681).

Almost surely, 231225452214 is an apocalyptic number.

31225452214 is a deficient number, since it is larger than the sum of its proper divisors (19950478682).

31225452214 is a wasteful number, since it uses less digits than its factorization.

31225452214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214911.

The product of its digits is 19200, while the sum is 31.

Subtracting 31225452214 from its reverse (41225452213), we obtain a palindrome (9999999999).

The spelling of 31225452214 in words is "thirty-one billion, two hundred twenty-five million, four hundred fifty-two thousand, two hundred fourteen".

Divisors: 1 2 11 22 641 1282 7051 14102 2214257 4428514 24356827 48713654 1419338737 2838677474 15612726107 31225452214