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10500380 = 2251124339
BaseRepresentation
bin101000000011…
…100100011100
3201202110210222
4220003210130
510142003010
61013020512
7155152232
oct50034434
921673728
1010500380
115a22100
123624738
132238557
141574952
15dc6355
hexa0391c

10500380 has 36 divisors (see below), whose sum is σ = 24243240. Its totient is φ = 3817440.

The previous prime is 10500379. The next prime is 10500421. The reversal of 10500380 is 8300501.

It is a super-2 number, since 2×105003802 = 220515960288800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251 + ... + 4589.

Almost surely, 210500380 is an apocalyptic number.

10500380 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 10500380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12121620).

10500380 is an abundant number, since it is smaller than the sum of its proper divisors (13742860).

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

10500380 is a wasteful number, since it uses less digits than its factorization.

10500380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370 (or 4357 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 10500380 is about 3240.4289839464. The cubic root of 10500380 is about 218.9785985772.

Adding to 10500380 its reverse (8300501), we get a palindrome (18800881).

The spelling of 10500380 in words is "ten million, five hundred thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 121 220 242 484 605 1210 2420 4339 8678 17356 21695 43390 47729 86780 95458 190916 238645 477290 525019 954580 1050038 2100076 2625095 5250190 10500380