Search a number
-
+
87538637363 = 971316889009
BaseRepresentation
bin101000110000110110…
…1011001101000110011
322100221201101112100012
41101201231121220303
52413234342343423
6104114212445135
76216201066122
oct1214155315063
9270851345305
1087538637363
11341413079a1
1214b706197ab
138340c00398
144346067ab9
152425234078
hex1461b59a33

87538637363 has 8 divisors (see below), whose sum is σ = 89116233360. Its totient is φ = 85974819840.

The previous prime is 87538637339. The next prime is 87538637371. The reversal of 87538637363 is 36373683578.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-87538637363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87538637063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3431798 + ... + 3457211.

It is an arithmetic number, because the mean of its divisors is an integer number (11139529170).

Almost surely, 287538637363 is an apocalyptic number.

87538637363 is a deficient number, since it is larger than the sum of its proper divisors (1577595997).

87538637363 is a wasteful number, since it uses less digits than its factorization.

87538637363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6889237.

The product of its digits is 45722880, while the sum is 59.

The spelling of 87538637363 in words is "eighty-seven billion, five hundred thirty-eight million, six hundred thirty-seven thousand, three hundred sixty-three".

Divisors: 1 97 131 12707 6889009 668233873 902460179 87538637363