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101787380620 = 22510965371503
BaseRepresentation
bin101111011001100000…
…0000010101110001100
3100201201201220200111221
41132303000002232030
53131430032134440
6114432132453124
710232246313502
oct1366300025614
9321651820457
10101787380620
113a193360672
121788847a1a4
1397a1c01903
144cd85b0672
1529ab0edd4a
hex17b3002b8c

101787380620 has 48 divisors (see below), whose sum is σ = 216047905920. Its totient is φ = 40279078656.

The previous prime is 101787380579. The next prime is 101787380623. The reversal of 101787380620 is 26083787101.

101787380620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (101787380623) 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, 1387789 + ... + 1459291.

It is an arithmetic number, because the mean of its divisors is an integer number (4500998040).

Almost surely, 2101787380620 is an apocalyptic number.

101787380620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101787380620 is an abundant number, since it is smaller than the sum of its proper divisors (114260525300).

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

101787380620 is a wasteful number, since it uses less digits than its factorization.

101787380620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72274 (or 72272 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The spelling of 101787380620 in words is "one hundred one billion, seven hundred eighty-seven million, three hundred eighty thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 109 218 436 545 653 1090 1306 2180 2612 3265 6530 13060 71177 71503 142354 143006 284708 286012 355885 357515 711770 715030 1423540 1430060 7793827 15587654 31175308 38969135 46691459 77938270 93382918 155876540 186765836 233457295 466914590 933829180 5089369031 10178738062 20357476124 25446845155 50893690310 101787380620