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31240420414 = 2713940939251
BaseRepresentation
bin11101000110000100…
…101111110000111110
32222122012100210021221
4131012010233300332
51002440021423124
622203542343554
72154111122620
oct350604576076
988565323257
1031240420414
1112281448275
12607a42abba
132c3b36c588
14172509ac10
15c2c99ace4
hex74612fc3e

31240420414 has 32 divisors (see below), whose sum is σ = 54073555200. Its totient is φ = 13259592000.

The previous prime is 31240420403. The next prime is 31240420439. The reversal of 31240420414 is 41402404213.

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 15 ways as a sum of consecutive naturals, for example, 776289 + ... + 815539.

It is an arithmetic number, because the mean of its divisors is an integer number (1689798600).

Almost surely, 231240420414 is an apocalyptic number.

31240420414 is a deficient number, since it is larger than the sum of its proper divisors (22833134786).

31240420414 is a wasteful number, since it uses less digits than its factorization.

31240420414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39808.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 31240420414 its reverse (41402404213), we get a palindrome (72642824627).

The spelling of 31240420414 in words is "thirty-one billion, two hundred forty million, four hundred twenty thousand, four hundred fourteen".

Divisors: 1 2 7 14 139 278 409 818 973 1946 2863 5726 39251 56851 78502 113702 274757 397957 549514 795914 5455889 10911778 16053659 32107318 38191223 76382446 112375613 224751226 2231458601 4462917202 15620210207 31240420414