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102164135620 = 225231061209327
BaseRepresentation
bin101111100100101110…
…1001111111011000100
3100202200222211211012211
41133021131033323010
53133213004314440
6114533351553204
710244502552541
oct1371135177304
9322628754184
10102164135620
113a366a9a238
121797268b804
139831c94a71
144d32643bc8
1529ce21eeea
hex17c974fec4

102164135620 has 48 divisors (see below), whose sum is σ = 224084786688. Its totient is φ = 39051858560.

The previous prime is 102164135617. The next prime is 102164135627. The reversal of 102164135620 is 26531461201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102164135627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383397 + ... + 592723.

It is an arithmetic number, because the mean of its divisors is an integer number (4668433056).

Almost surely, 2102164135620 is an apocalyptic number.

102164135620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102164135620 is an abundant number, since it is smaller than the sum of its proper divisors (121920651068).

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

102164135620 is a wasteful number, since it uses less digits than its factorization.

102164135620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210420 (or 210418 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 102164135620 its reverse (26531461201), we get a palindrome (128695596821).

The spelling of 102164135620 in words is "one hundred two billion, one hundred sixty-four million, one hundred thirty-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 1061 2122 4244 5305 10610 21220 24403 48806 97612 122015 209327 244030 418654 488060 837308 1046635 2093270 4186540 4814521 9629042 19258084 24072605 48145210 96290420 222095947 444191894 888383788 1110479735 2220959470 4441918940 5108206781 10216413562 20432827124 25541033905 51082067810 102164135620