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104849680 = 24513181557
BaseRepresentation
bin1100011111111…
…10000100010000
321022021220201111
412033332010100
5203320142210
614223143104
72412131125
oct617760420
9238256644
10104849680
1154204131
122b144a94
1318951040
14dcd474c
15931188a
hex63fe110

104849680 has 80 divisors (see below), whose sum is σ = 264451824. Its totient is φ = 38430720.

The previous prime is 104849671. The next prime is 104849713. The reversal of 104849680 is 86948401.

It can be written as a sum of positive squares in 8 ways, for example, as 59043856 + 45805824 = 7684^2 + 6768^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1048496802 = 21986910792204800, which contains 22 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187962 + ... + 188518.

Almost surely, 2104849680 is an apocalyptic number.

104849680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 104849680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132225912).

104849680 is an abundant number, since it is smaller than the sum of its proper divisors (159602144).

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

104849680 is a wasteful number, since it uses less digits than its factorization.

104849680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764 (or 758 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 104849680 is about 10239.6132739474. The cubic root of 104849680 is about 471.5441591599.

It can be divided in two parts, 1048496 and 80, that added together give a 20-th power (1048576 = 220).

The spelling of 104849680 in words is "one hundred four million, eight hundred forty-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 181 208 260 362 520 557 724 905 1040 1114 1448 1810 2228 2353 2785 2896 3620 4456 4706 5570 7240 7241 8912 9412 11140 11765 14480 14482 18824 22280 23530 28964 36205 37648 44560 47060 57928 72410 94120 100817 115856 144820 188240 201634 289640 403268 504085 579280 806536 1008170 1310621 1613072 2016340 2621242 4032680 5242484 6553105 8065360 10484968 13106210 20969936 26212420 52424840 104849680