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13803916 = 2274391123
BaseRepresentation
bin110100101010…
…000110001100
3221222022102011
4310222012030
512013211131
61211511004
7225221440
oct64520614
927868364
1013803916
1178790a5
124758464
132b240c9
141b94820
15132a0b1
hexd2a18c

13803916 has 24 divisors (see below), whose sum is σ = 27695360. Its totient is φ = 5897232.

The previous prime is 13803893. The next prime is 13803917. The reversal of 13803916 is 61930831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13803917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11731 + ... + 12853.

Almost surely, 213803916 is an apocalyptic number.

It is an amenable number.

13803916 is an abundant number, since it is smaller than the sum of its proper divisors (13891444).

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

13803916 is a wasteful number, since it uses less digits than its factorization.

13803916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1571 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 13803916 is about 3715.3621626969. The cubic root of 13803916 is about 239.8837168165.

The spelling of 13803916 in words is "thirteen million, eight hundred three thousand, nine hundred sixteen".

Divisors: 1 2 4 7 14 28 439 878 1123 1756 2246 3073 4492 6146 7861 12292 15722 31444 492997 985994 1971988 3450979 6901958 13803916