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47142985392 = 2433412661641
BaseRepresentation
bin101011111001111100…
…001101111010110000
311111200110211210101000
4223321330031322300
51233022101013032
633353541442000
73256150523046
oct537174157260
9144613753330
1047142985392
1118aa1a93758
129178110300
1345a3b9c639
1423d3108396
15135db46e7c
hexaf9f0deb0

47142985392 has 80 divisors (see below), whose sum is σ = 138618315360. Its totient is φ = 15331046400.

The previous prime is 47142985369. The next prime is 47142985397. The reversal of 47142985392 is 29358924174.

47142985392 is a `hidden beast` number, since 4 + 7 + 14 + 2 + 98 + 539 + 2 = 666.

It is a super-2 number, since 2×471429853922 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (47142985397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1313109 + ... + 1348532.

It is an arithmetic number, because the mean of its divisors is an integer number (1732728942).

Almost surely, 247142985392 is an apocalyptic number.

It is an amenable number.

47142985392 is an abundant number, since it is smaller than the sum of its proper divisors (91475329968).

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

47142985392 is a wasteful number, since it uses less digits than its factorization.

47142985392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661699 (or 2661687 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 47142985392 in words is "forty-seven billion, one hundred forty-two million, nine hundred eighty-five thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 41 48 54 72 82 108 123 144 164 216 246 328 369 432 492 656 738 984 1107 1476 1968 2214 2952 4428 5904 8856 17712 2661641 5323282 7984923 10646564 15969846 21293128 23954769 31939692 42586256 47909538 63879384 71864307 95819076 109127281 127758768 143728614 191638152 218254562 287457228 327381843 383276304 436509124 574914456 654763686 873018248 982145529 1149828912 1309527372 1746036496 1964291058 2619054744 2946436587 3928582116 5238109488 5892873174 7857164232 11785746348 15714328464 23571492696 47142985392