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10690378 = 25345189
BaseRepresentation
bin101000110001…
…111101001010
3202010010102221
4220301331022
510214043003
61021044254
7156603166
oct50617512
922103387
1010690378
116041926
1236b668a
1322a3b8a
1415c3ca6
15e127bd
hexa31f4a

10690378 has 4 divisors (see below), whose sum is σ = 16035570. Its totient is φ = 5345188.

The previous prime is 10690367. The next prime is 10690409. The reversal of 10690378 is 87309601.

10690378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87309601 = 823106087.

It can be written as a sum of positive squares in only one way, i.e., 9903609 + 786769 = 3147^2 + 887^2 .

It is a super-2 number, since 2×106903782 = 228568363565768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2672593 + ... + 2672596.

Almost surely, 210690378 is an apocalyptic number.

10690378 is a deficient number, since it is larger than the sum of its proper divisors (5345192).

10690378 is an equidigital number, since it uses as much as digits as its factorization.

10690378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5345191.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 10690378 is about 3269.6143503478. The cubic root of 10690378 is about 220.2914731672.

Adding to 10690378 its reverse (87309601), we get a palindrome (97999979).

The spelling of 10690378 in words is "ten million, six hundred ninety thousand, three hundred seventy-eight".

Divisors: 1 2 5345189 10690378