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30715105705824 = 2531783226753379
BaseRepresentation
bin1101111101111011010101…
…11101101111111101100000
311000202100001112020112001010
412332331222331233331200
513011214014030041244
6145154154052140520
76320043644530341
oct676755275577540
9130670045215033
1030715105705824
119872226480051
123540962907740
13141a5642b5b57
147828949500c8
15383e850c5eb9
hex1bef6af6ff60

30715105705824 has 96 divisors (see below), whose sum is σ = 86398479861120. Its totient is φ = 9520013821952.

The previous prime is 30715105705811. The next prime is 30715105705831. The reversal of 30715105705824 is 42850750151703.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113241234 + ... + 113512145.

It is an arithmetic number, because the mean of its divisors is an integer number (899984165220).

Almost surely, 230715105705824 is an apocalyptic number.

30715105705824 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30715105705824 is an abundant number, since it is smaller than the sum of its proper divisors (55683374155296).

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

30715105705824 is a wasteful number, since it uses less digits than its factorization.

30715105705824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226753492 (or 226753484 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 48.

The spelling of 30715105705824 in words is "thirty trillion, seven hundred fifteen billion, one hundred five million, seven hundred five thousand, eight hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 68 83 96 102 136 166 204 249 272 332 408 498 544 664 816 996 1328 1411 1632 1992 2656 2822 3984 4233 5644 7968 8466 11288 16932 22576 33864 45152 67728 135456 226753379 453506758 680260137 907013516 1360520274 1814027032 2721040548 3628054064 3854807443 5442081096 7256108128 7709614886 10884162192 11564422329 15419229772 18820530457 21768324384 23128844658 30838459544 37641060914 46257689316 56461591371 61676919088 75282121828 92515378632 112923182742 123353838176 150564243656 185030757264 225846365484 301128487312 319949017769 370061514528 451692730968 602256974624 639898035538 903385461936 959847053307 1279796071076 1806770923872 1919694106614 2559592142152 3839388213228 5119184284304 7678776426456 10238368568608 15357552852912 30715105705824