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47129040870 = 23512719762791
BaseRepresentation
bin101011111001000111…
…000001011111100110
311111122111121100002020
4223321013001133212
51233010013301440
633352322524010
73255621144342
oct537107013746
9144574540066
1047129040870
1118a95129a5a
129173506606
1345a1029542
1423d1318622
15135c7e03d0
hexaf91c17e6

47129040870 has 64 divisors (see below), whose sum is σ = 114580832256. Its totient is φ = 12405294720.

The previous prime is 47129040863. The next prime is 47129040883. The reversal of 47129040870 is 7804092174.

It is a happy number.

It is a super-2 number, since 2×471290408702 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 719175 + ... + 781965.

It is an arithmetic number, because the mean of its divisors is an integer number (1790325504).

Almost surely, 247129040870 is an apocalyptic number.

47129040870 is an abundant number, since it is smaller than the sum of its proper divisors (67451791386).

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

47129040870 is a wasteful number, since it uses less digits than its factorization.

47129040870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63125.

The product of its (nonzero) digits is 112896, while the sum is 42.

The spelling of 47129040870 in words is "forty-seven billion, one hundred twenty-nine million, forty thousand, eight hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 127 197 254 381 394 591 635 762 985 1182 1270 1905 1970 2955 3810 5910 25019 50038 62791 75057 125095 125582 150114 188373 250190 313955 375285 376746 627910 750570 941865 1883730 7974457 12369827 15948914 23923371 24739654 37109481 39872285 47846742 61849135 74218962 79744570 119616855 123698270 185547405 239233710 371094810 1570968029 3141936058 4712904087 7854840145 9425808174 15709680290 23564520435 47129040870