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47967978239 = 616359123661
BaseRepresentation
bin101100101011000111…
…010100001011111111
311120210222012202210122
4230223013110023333
51241214300300424
634011452125155
73315456042026
oct545307241377
9146728182718
1047967978239
1119385745025
1293684667bb
1346a5a9339c
1424708db8bd
1513ab2a945e
hexb2b1d42ff

47967978239 has 8 divisors (see below), whose sum is σ = 48762399840. Its totient is φ = 47173816800.

The previous prime is 47967978199. The next prime is 47967978251. The reversal of 47967978239 is 93287976974.

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 47967978239 - 212 = 47967974143 is a prime.

It is a super-2 number, since 2×479679782392 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47967978259) 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, 326069 + ... + 449729.

It is an arithmetic number, because the mean of its divisors is an integer number (6095299980).

Almost surely, 247967978239 is an apocalyptic number.

47967978239 is a deficient number, since it is larger than the sum of its proper divisors (794421601).

47967978239 is a wasteful number, since it uses less digits than its factorization.

47967978239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130081.

The product of its digits is 288054144, while the sum is 71.

The spelling of 47967978239 in words is "forty-seven billion, nine hundred sixty-seven million, nine hundred seventy-eight thousand, two hundred thirty-nine".

Divisors: 1 61 6359 123661 387899 7543321 786360299 47967978239