Search a number
-
+
8197385630 = 257294038121
BaseRepresentation
bin1111010001001101…
…00010110110011110
3210011021211100002012
413220212202312132
5113242012320010
63433230231222
7410065425320
oct75046426636
923137740065
108197385630
113527235175
121709355512
13a083c3455
1457a9a9610
1532e9da005
hex1e89a2d9e

8197385630 has 32 divisors (see below), whose sum is σ = 17444687040. Its totient is φ = 2713616640.

The previous prime is 8197385629. The next prime is 8197385681. The reversal of 8197385630 is 365837918.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2017031 + ... + 2021090.

It is an arithmetic number, because the mean of its divisors is an integer number (545146470).

Almost surely, 28197385630 is an apocalyptic number.

8197385630 is an abundant number, since it is smaller than the sum of its proper divisors (9247301410).

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

8197385630 is a wasteful number, since it uses less digits than its factorization.

8197385630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4038164.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 8197385630 is about 90539.4147871522. The cubic root of 8197385630 is about 2016.3153453374.

The spelling of 8197385630 in words is "eight billion, one hundred ninety-seven million, three hundred eighty-five thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 4038121 8076242 20190605 28266847 40381210 56533694 117105509 141334235 234211018 282668470 585527545 819738563 1171055090 1639477126 4098692815 8197385630