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31240252451241 = 332235188548821
BaseRepresentation
bin1110001101001101100000…
…01001100110100110101001
311002121112112220111020222000
413012212300021212212221
513043320014111414431
6150235323541321213
76403014402314421
oct706466011464651
9132545486436860
1031240252451241
119a54a0a093579
1236066a1406209
131457c35199832
147a00717d9481
1539296d7169e6
hex1c69b02669a9

31240252451241 has 16 divisors (see below), whose sum is σ = 46489397445120. Its totient is φ = 20733441084720.

The previous prime is 31240252451209. The next prime is 31240252451251. The reversal of 31240252451241 is 14215425204213.

31240252451241 is a `hidden beast` number, since 3 + 1 + 2 + 4 + 0 + 2 + 524 + 5 + 124 + 1 = 666.

It is not a de Polignac number, because 31240252451241 - 25 = 31240252451209 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31240252451196 and 31240252451205.

It is not an unprimeable number, because it can be changed into a prime (31240252451251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2594268390 + ... + 2594280431.

It is an arithmetic number, because the mean of its divisors is an integer number (2905587340320).

Almost surely, 231240252451241 is an apocalyptic number.

It is an amenable number.

31240252451241 is a deficient number, since it is larger than the sum of its proper divisors (15249144993879).

31240252451241 is a wasteful number, since it uses less digits than its factorization.

31240252451241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5188549053 (or 5188549047 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 31240252451241 its reverse (14215425204213), we get a palindrome (45455677655454).

The spelling of 31240252451241 in words is "thirty-one trillion, two hundred forty billion, two hundred fifty-two million, four hundred fifty-one thousand, two hundred forty-one".

Divisors: 1 3 9 27 223 669 2007 6021 5188548821 15565646463 46696939389 140090818167 1157046387083 3471139161249 10413417483747 31240252451241