Search a number
-
+
61467240180 = 22354124986683
BaseRepresentation
bin111001001111101110…
…111010011011110100
312212122202110022220010
4321033232322123310
52001341103141210
644123200140220
74304133630603
oct711756723364
9185582408803
1061467240180
1124082722355
12bab5307670
135a4771c248
142d916a9a3a
1518eb47a920
hexe4fbba6f4

61467240180 has 48 divisors (see below), whose sum is σ = 176306042304. Its totient is φ = 15991476480.

The previous prime is 61467240151. The next prime is 61467240181. The reversal of 61467240180 is 8104276416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61467240181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12490882 + ... + 12495801.

It is an arithmetic number, because the mean of its divisors is an integer number (3673042548).

Almost surely, 261467240180 is an apocalyptic number.

61467240180 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61467240180 is an abundant number, since it is smaller than the sum of its proper divisors (114838802124).

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

61467240180 is a wasteful number, since it uses less digits than its factorization.

61467240180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24986736 (or 24986734 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The spelling of 61467240180 in words is "sixty-one billion, four hundred sixty-seven million, two hundred forty thousand, one hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 41 60 82 123 164 205 246 410 492 615 820 1230 2460 24986683 49973366 74960049 99946732 124933415 149920098 249866830 299840196 374800245 499733660 749600490 1024454003 1499200980 2048908006 3073362009 4097816012 5122270015 6146724018 10244540030 12293448036 15366810045 20489080060 30733620090 61467240180