Search a number
-
+
168867432472810 = 2564812605576801
BaseRepresentation
bin100110011001010110000011…
…010100111010000011101010
3211010220120100201022201210211
4212121112003110322003222
5134113211000203112220
61355052343313331334
750366161253516011
oct4631260324720352
9733816321281724
10168867432472810
11498963042a2085
1216b33781566b4a
13732c190a99026
142d9b327b77a78
15147c9695c1b5a
hex99958353a0ea

168867432472810 has 16 divisors (see below), whose sum is σ = 304008278950152. Its totient is φ = 67536550656000.

The previous prime is 168867432472759. The next prime is 168867432472861. The reversal of 168867432472810 is 18274234768861.

168867432472810 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (168867432472759) and next prime (168867432472861).

It can be written as a sum of positive squares in 4 ways, for example, as 167894966290041 + 972466182769 = 12957429^2 + 986137^2 .

It is a super-2 number, since 2×1688674324728102 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1302723591 + ... + 1302853210.

Almost surely, 2168867432472810 is an apocalyptic number.

168867432472810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168867432472810 is a deficient number, since it is larger than the sum of its proper divisors (135140846477342).

168867432472810 is a wasteful number, since it uses less digits than its factorization.

168867432472810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605583289.

The product of its (nonzero) digits is 173408256, while the sum is 67.

The spelling of 168867432472810 in words is "one hundred sixty-eight trillion, eight hundred sixty-seven billion, four hundred thirty-two million, four hundred seventy-two thousand, eight hundred ten".

Divisors: 1 2 5 10 6481 12962 32405 64810 2605576801 5211153602 13027884005 26055768010 16886743247281 33773486494562 84433716236405 168867432472810