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31240130214213 = 3247711377592653
BaseRepresentation
bin1110001101001101010001…
…10111010011100101000101
311002121112020101110222021200
413012212220313103211011
513043314241313323323
6150235303453333113
76403011356315304
oct706465067234505
9132545211428250
1031240130214213
119a54957094038
123606668497199
131457c15a6b62b
147a005d49a43b
15392962b1d443
hex1c69a8dd3945

31240130214213 has 48 divisors (see below), whose sum is σ = 47074940729856. Its totient is φ = 19949844983040.

The previous prime is 31240130214203. The next prime is 31240130214341. The reversal of 31240130214213 is 31241203104213.

31240130214213 is a `hidden beast` number, since 3 + 1 + 2 + 401 + 30 + 2 + 14 + 213 = 666.

It is not a de Polignac number, because 31240130214213 - 24 = 31240130214197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31240130214203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318195 + ... + 7910847.

It is an arithmetic number, because the mean of its divisors is an integer number (980727931872).

Almost surely, 231240130214213 is an apocalyptic number.

It is an amenable number.

31240130214213 is a deficient number, since it is larger than the sum of its proper divisors (15834810515643).

31240130214213 is a wasteful number, since it uses less digits than its factorization.

31240130214213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7592914 (or 7592911 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 31240130214213 its reverse (31241203104213), we get a palindrome (62481333318426).

The spelling of 31240130214213 in words is "thirty-one trillion, two hundred forty billion, one hundred thirty million, two hundred fourteen thousand, two hundred thirteen".

Divisors: 1 3 9 47 71 137 141 213 411 423 639 1233 3337 6439 9727 10011 19317 29181 30033 57951 87543 457169 1371507 4114521 7592653 22777959 68333877 356854691 539078363 1040193461 1070564073 1617235089 3120580383 3211692219 4851705267 9361741149 25336683061 48889092667 73853735731 76010049183 146667278001 221561207193 228030147549 440001834003 664683621579 3471125579357 10413376738071 31240130214213