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47720143158 = 2319829504943
BaseRepresentation
bin101100011100010101…
…111001100100110110
311120011200212102222120
4230130111321210312
51240212324040113
633531120140410
73306356344542
oct543425714466
9146150772876
1047720143158
111926885a946
1292b9467706
13466662b1cc
142449a26a22
151394651a23
hexb1c579936

47720143158 has 32 divisors (see below), whose sum is σ = 100584844800. Its totient is φ = 15051311136.

The previous prime is 47720143151. The next prime is 47720143201. The reversal of 47720143158 is 85134102774.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47720143151) by changing a digit.

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, 157966 + ... + 346977.

It is an arithmetic number, because the mean of its divisors is an integer number (3143276400).

Almost surely, 247720143158 is an apocalyptic number.

47720143158 is an abundant number, since it is smaller than the sum of its proper divisors (52864701642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47720143158 is a wasteful number, since it uses less digits than its factorization.

47720143158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505796.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 47720143158 in words is "forty-seven billion, seven hundred twenty million, one hundred forty-three thousand, one hundred fifty-eight".

Divisors: 1 2 3 6 19 38 57 114 829 1658 2487 4974 15751 31502 47253 94506 504943 1009886 1514829 3029658 9593917 19187834 28781751 57563502 418597747 837195494 1255793241 2511586482 7953357193 15906714386 23860071579 47720143158