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31240450310 = 255128760913
BaseRepresentation
bin11101000110000100…
…110111000100000110
32222122012102022022012
4131012010313010012
51002440023402220
622203543134222
72154111306026
oct350604670406
988565368265
1031240450310
1112281468783
12607a444372
132c3b380074
1417250a7a86
15c2c9a4ac5
hex746137106

31240450310 has 16 divisors (see below), whose sum is σ = 56234830176. Its totient is φ = 12495731328.

The previous prime is 31240450279. The next prime is 31240450337. The reversal of 31240450310 is 1305404213.

It is a super-2 number, since 2×312404503102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482414 + ... + 543326.

It is an arithmetic number, because the mean of its divisors is an integer number (3514676886).

Almost surely, 231240450310 is an apocalyptic number.

31240450310 is a deficient number, since it is larger than the sum of its proper divisors (24994379866).

31240450310 is a wasteful number, since it uses less digits than its factorization.

31240450310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112207.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 31240450310 its reverse (1305404213), we get a palindrome (32545854523).

The spelling of 31240450310 in words is "thirty-one billion, two hundred forty million, four hundred fifty thousand, three hundred ten".

Divisors: 1 2 5 10 51287 60913 102574 121826 256435 304565 512870 609130 3124045031 6248090062 15620225155 31240450310