Search a number
-
+
28046508565824 = 26337113148713799
BaseRepresentation
bin1100110000010000101100…
…01011100010010101000000
310200022012221101220211212000
412120020112023202111000
512134003222143101244
6135352215502104000
75623202425231410
oct630102613422500
9120265841824760
1028046508565824
118a33503a07131
12318b726b7b000
131285a0b4ba118
146cd65b65c640
15339849dc7169
hex1982162e2540

28046508565824 has 448 divisors, whose sum is σ = 95135053824000. Its totient is φ = 7936457711616.

The previous prime is 28046508565813. The next prime is 28046508565903. The reversal of 28046508565824 is 42856580564082.

It is a happy number.

28046508565824 is a `hidden beast` number, since 2 + 8 + 0 + 4 + 6 + 508 + 56 + 58 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2032496077 + ... + 2032509875.

Almost surely, 228046508565824 is an apocalyptic number.

28046508565824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28046508565824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47567526912000).

28046508565824 is an abundant number, since it is smaller than the sum of its proper divisors (67088545258176).

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

28046508565824 is a wasteful number, since it uses less digits than its factorization.

28046508565824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15427 (or 15411 counting only the distinct ones).

The product of its (nonzero) digits is 147456000, while the sum is 63.

The spelling of 28046508565824 in words is "twenty-eight trillion, forty-six billion, five hundred eight million, five hundred sixty-five thousand, eight hundred twenty-four".