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188953938907780 = 22525020473775987
BaseRepresentation
bin101010111101101001000100…
…011010000101001010000100
3220210000211010212220110022111
4222331221010122011022010
5144231310131330022110
61505512124032510404
754541320516235444
oct5275510432051204
9823024125813274
10188953938907780
115522aa08549082
12192386579ab404
138158384179697
1434935c2d2c124
1516ca1d3c48e8a
hexabda44685284

188953938907780 has 24 divisors (see below), whose sum is σ = 396803535383808. Its totient is φ = 75581525338848.

The previous prime is 188953938907763. The next prime is 188953938907847. The reversal of 188953938907780 is 87709839359881.

188953938907780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48152947 + ... + 51928933.

It is an arithmetic number, because the mean of its divisors is an integer number (16533480640992).

Almost surely, 2188953938907780 is an apocalyptic number.

188953938907780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188953938907780 is an abundant number, since it is smaller than the sum of its proper divisors (207849596476028).

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

188953938907780 is a wasteful number, since it uses less digits than its factorization.

188953938907780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6278043 (or 6278041 counting only the distinct ones).

The product of its (nonzero) digits is 6584094720, while the sum is 85.

The spelling of 188953938907780 in words is "one hundred eighty-eight trillion, nine hundred fifty-three billion, nine hundred thirty-eight million, nine hundred seven thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2502047 3775987 5004094 7551974 10008188 12510235 15103948 18879935 25020470 37759870 50040940 75519740 9447696945389 18895393890778 37790787781556 47238484726945 94476969453890 188953938907780