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103797640 = 2356773833
BaseRepresentation
bin1100010111111…
…01001110001000
321020022110121001
412023331032020
5203033011030
614144424344
72400160012
oct613751610
9236273531
10103797640
1153655781
122a9180b4
131867322b
14dadd1b2
1591a4cca
hex62fd388

103797640 has 32 divisors (see below), whose sum is σ = 233950680. Its totient is φ = 41446912.

The previous prime is 103797611. The next prime is 103797671. The reversal of 103797640 is 46797301.

It can be written as a sum of positive squares in 4 ways, for example, as 96943716 + 6853924 = 9846^2 + 2618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 103797640.

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, 25164 + ... + 28996.

Almost surely, 2103797640 is an apocalyptic number.

103797640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103797640 is an abundant number, since it is smaller than the sum of its proper divisors (130153040).

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

103797640 is a wasteful number, since it uses less digits than its factorization.

103797640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521 (or 4517 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 103797640 is about 10188.1126809630. The cubic root of 103797640 is about 469.9617291910.

The spelling of 103797640 in words is "one hundred three million, seven hundred ninety-seven thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 20 40 677 1354 2708 3385 3833 5416 6770 7666 13540 15332 19165 27080 30664 38330 76660 153320 2594941 5189882 10379764 12974705 20759528 25949410 51898820 103797640