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105683968432 = 2471931251679
BaseRepresentation
bin110001001101101000…
…0010110000110110000
3101002210022000212010001
41202123100112012300
53212420043442212
6120314530115344
710430642624020
oct1423320260660
9332708025101
10105683968432
1140902932779
121859541bb54
139c73286683
145187cc5a80
152b38248657
hex189b4161b0

105683968432 has 120 divisors (see below), whose sum is σ = 254538470400. Its totient is φ = 41524306560.

The previous prime is 105683968409. The next prime is 105683968433. The reversal of 105683968432 is 234869386501.

It is a super-2 number, since 2×1056839684322 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105683968433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2019169 + ... + 2070847.

It is an arithmetic number, because the mean of its divisors is an integer number (2121153920).

Almost surely, 2105683968432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105683968432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127269235200).

105683968432 is an abundant number, since it is smaller than the sum of its proper divisors (148854501968).

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

105683968432 is a wasteful number, since it uses less digits than its factorization.

105683968432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51775 (or 51738 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 105683968432 in words is "one hundred five billion, six hundred eighty-three million, nine hundred sixty-eight thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 19 28 31 38 56 62 76 112 124 133 152 217 248 266 304 434 496 532 589 868 961 1064 1178 1736 1922 2128 2356 3472 3844 4123 4712 6727 7688 8246 9424 13454 15376 16492 18259 26908 32984 36518 51679 53816 65968 73036 103358 107632 127813 146072 206716 255626 292144 361753 413432 511252 723506 826864 981901 1022504 1447012 1602049 1963802 2045008 2894024 3204098 3927604 5788048 6408196 6873307 7855208 11214343 12816392 13746614 15710416 22428686 25632784 27493228 30438931 44857372 49663519 54986456 60877862 89714744 99327038 109972912 121755724 179429488 198654076 213072517 243511448 347644633 397308152 426145034 487022896 695289266 794616304 852290068 943606861 1390578532 1704580136 1887213722 2781157064 3409160272 3774427444 5562314128 6605248027 7548854888 13210496054 15097709776 26420992108 52841984216 105683968432