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31240231310113 = 737120618653707
BaseRepresentation
bin1110001101001101011101…
…11000111101001100100001
311002121112111102201011210021
413012212232320331030201
513043314443203410423
6150235321504233441
76403014024523450
oct706465670751441
9132545442634707
1031240231310113
119a549a9163971
12360669630b881
131457c309a6ba7
147a006ca94b97
1539296b93c95d
hex1c69aee3d321

31240231310113 has 8 divisors (see below), whose sum is σ = 36668070727232. Its totient is φ = 26053629200496.

The previous prime is 31240231310011. The next prime is 31240231310137. The reversal of 31240231310113 is 31101313204213.

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

It is a cyclic number.

It is not a de Polignac number, because 31240231310113 - 241 = 29041208054561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31240231310153) 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, 60309326595 + ... + 60309327112.

It is an arithmetic number, because the mean of its divisors is an integer number (4583508840904).

Almost surely, 231240231310113 is an apocalyptic number.

It is an amenable number.

31240231310113 is a deficient number, since it is larger than the sum of its proper divisors (5427839417119).

31240231310113 is a wasteful number, since it uses less digits than its factorization.

31240231310113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120618653751.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31240231310113 its reverse (31101313204213), we get a palindrome (62341544514326).

The spelling of 31240231310113 in words is "thirty-one trillion, two hundred forty billion, two hundred thirty-one million, three hundred ten thousand, one hundred thirteen".

Divisors: 1 7 37 259 120618653707 844330575949 4462890187159 31240231310113