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48189866172 = 22373127766809
BaseRepresentation
bin101100111000010101…
…110000000010111100
311121101102201211211020
4230320111300002330
51242143101204142
634045500024140
73324122050440
oct547025600274
9147342654736
1048189866172
1119489a17788
12940a832050
13470ca42216
14249217a820
1513c09d8cec
hexb385700bc

48189866172 has 96 divisors (see below), whose sum is σ = 133132554240. Its totient is φ = 13276085760.

The previous prime is 48189866171. The next prime is 48189866173. The reversal of 48189866172 is 27166898184.

It is an interprime number because it is at equal distance from previous prime (48189866171) and next prime (48189866173).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48189866171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687904 + ... + 754712.

It is an arithmetic number, because the mean of its divisors is an integer number (1386797440).

Almost surely, 248189866172 is an apocalyptic number.

48189866172 is a gapful number since it is divisible by the number (42) 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 48189866172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66566277120).

48189866172 is an abundant number, since it is smaller than the sum of its proper divisors (84942688068).

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

48189866172 is a wasteful number, since it uses less digits than its factorization.

48189866172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67131 (or 67129 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 60.

The spelling of 48189866172 in words is "forty-eight billion, one hundred eighty-nine million, eight hundred sixty-six thousand, one hundred seventy-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 62 84 93 124 186 217 277 372 434 554 651 831 868 1108 1302 1662 1939 2604 3324 3878 5817 7756 8587 11634 17174 23268 25761 34348 51522 60109 66809 103044 120218 133618 180327 200427 240436 267236 360654 400854 467663 721308 801708 935326 1402989 1870652 2071079 2805978 4142158 5611956 6213237 8284316 12426474 14497553 18506093 24852948 28995106 37012186 43492659 55518279 57990212 74024372 86985318 111036558 129542651 173970636 222073116 259085302 388627953 518170604 573688883 777255906 1147377766 1554511812 1721066649 2294755532 3442133298 4015822181 6884266596 8031644362 12047466543 16063288724 24094933086 48189866172