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29231259806 = 274744424407
BaseRepresentation
bin11011001110010100…
…011010000010011110
32210110011202212002002
4123032110122002132
5434331200303211
621232331202302
72053243415540
oct331624320236
983404685062
1029231259806
1111440314161
1257b95a6392
1329ab038748
1415b42d9690
15b613c903b
hex6ce51a09e

29231259806 has 16 divisors (see below), whose sum is σ = 51176918016. Its totient is φ = 12261136056.

The previous prime is 29231259803. The next prime is 29231259829. The reversal of 29231259806 is 60895213292.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29231259803) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22211546 + ... + 22212861.

It is an arithmetic number, because the mean of its divisors is an integer number (3198557376).

Almost surely, 229231259806 is an apocalyptic number.

29231259806 is a deficient number, since it is larger than the sum of its proper divisors (21945658210).

29231259806 is a wasteful number, since it uses less digits than its factorization.

29231259806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44424463.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 29231259806 in words is "twenty-nine billion, two hundred thirty-one million, two hundred fifty-nine thousand, eight hundred six".

Divisors: 1 2 7 14 47 94 329 658 44424407 88848814 310970849 621941698 2087947129 4175894258 14615629903 29231259806