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13850988 = 22317431579
BaseRepresentation
bin110100110101…
…100101101100
3222001200222120
4310311211230
512021212423
61212512540
7225505614
oct64654554
928050876
1013850988
1179004a8
12477b750
132b3c668
141ba7a44
151338ee3
hexd3596c

13850988 has 48 divisors (see below), whose sum is σ = 35038080. Its totient is φ = 4241664.

The previous prime is 13850983. The next prime is 13850999. The reversal of 13850988 is 88905831.

It is a super-2 number, since 2×138509882 = 383699737152288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13850983) by changing a digit.

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, 7983 + ... + 9561.

It is an arithmetic number, because the mean of its divisors is an integer number (729960).

Almost surely, 213850988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13850988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17519040).

13850988 is an abundant number, since it is smaller than the sum of its proper divisors (21187092).

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

13850988 is a wasteful number, since it uses less digits than its factorization.

13850988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 13850988 is about 3721.6915508946. The cubic root of 13850988 is about 240.1560790308.

The spelling of 13850988 in words is "thirteen million, eight hundred fifty thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 12 17 34 43 51 68 86 102 129 172 204 258 516 731 1462 1579 2193 2924 3158 4386 4737 6316 8772 9474 18948 26843 53686 67897 80529 107372 135794 161058 203691 271588 322116 407382 814764 1154249 2308498 3462747 4616996 6925494 13850988