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31240212034 = 219822110843
BaseRepresentation
bin11101000110000011…
…111100111001000010
32222122011222012110011
4131012003330321002
51002434443241114
622203534055134
72154106264243
oct350603747102
988564865404
1031240212034
1112281315759
12607a34a4aa
132c3b2c8785
141725044cca
15c2c9591c4
hex7460fce42

31240212034 has 8 divisors (see below), whose sum is σ = 49326650640. Its totient is φ = 14797995156.

The previous prime is 31240212023. The next prime is 31240212049. The reversal of 31240212034 is 43021204213.

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

It is a junction number, because it is equal to n+sod(n) for n = 31240211996 and 31240212014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411055384 + ... + 411055459.

It is an arithmetic number, because the mean of its divisors is an integer number (6165831330).

Almost surely, 231240212034 is an apocalyptic number.

31240212034 is a deficient number, since it is larger than the sum of its proper divisors (18086438606).

31240212034 is a wasteful number, since it uses less digits than its factorization.

31240212034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822110864.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31240212034 its reverse (43021204213), we get a palindrome (74261416247).

The spelling of 31240212034 in words is "thirty-one billion, two hundred forty million, two hundred twelve thousand, thirty-four".

Divisors: 1 2 19 38 822110843 1644221686 15620106017 31240212034