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47931906239 = 710366479759
BaseRepresentation
bin101100101000111101…
…101101100010111111
311120201110100010022122
4230220331231202333
51241131031444424
634004123033155
73314540323610
oct545075554277
9146643303278
1047931906239
1119367347658
12935836b7bb
13469b4736c9
142469bcbc07
1513a803145e
hexb28f6d8bf

47931906239 has 8 divisors (see below), whose sum is σ = 55311160320. Its totient is φ = 40685611896.

The previous prime is 47931906227. The next prime is 47931906257. The reversal of 47931906239 is 93260913974.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47931906239 - 216 = 47931840703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47931906739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33239159 + ... + 33240600.

It is an arithmetic number, because the mean of its divisors is an integer number (6913895040).

Almost surely, 247931906239 is an apocalyptic number.

47931906239 is a deficient number, since it is larger than the sum of its proper divisors (7379254081).

47931906239 is a wasteful number, since it uses less digits than its factorization.

47931906239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66479869.

The product of its (nonzero) digits is 2204496, while the sum is 53.

The spelling of 47931906239 in words is "forty-seven billion, nine hundred thirty-one million, nine hundred six thousand, two hundred thirty-nine".

Divisors: 1 7 103 721 66479759 465358313 6847415177 47931906239