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13785110680 = 2351131329797
BaseRepresentation
bin11001101011010100…
…00001100010011000
31022120201010011211211
430311222001202120
5211212442020210
610155514432504
7665415336025
oct146552014230
938521104754
1013785110680
115934376760
122808732734
1313b8c40733
1494ab3a54c
1555a33738a
hex335a81898

13785110680 has 32 divisors (see below), whose sum is σ = 33836181840. Its totient is φ = 5012767360.

The previous prime is 13785110663. The next prime is 13785110699. The reversal of 13785110680 is 8601158731.

It is a super-4 number, since 4×137851106804 (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 15664459 + ... + 15665338.

Almost surely, 213785110680 is an apocalyptic number.

13785110680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13785110680 is an abundant number, since it is smaller than the sum of its proper divisors (20051071160).

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

13785110680 is a wasteful number, since it uses less digits than its factorization.

13785110680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31329819 (or 31329815 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 13785110680 in words is "thirteen billion, seven hundred eighty-five million, one hundred ten thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 31329797 62659594 125319188 156648985 250638376 313297970 344627767 626595940 689255534 1253191880 1378511068 1723138835 2757022136 3446277670 6892555340 13785110680