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10716981 = 311324757
BaseRepresentation
bin101000111000…
…011100110101
3202011110221020
4220320130311
510220420411
61021411353
7160043562
oct50703465
922143836
1010716981
11605a910
123709b59
1322b3012
1415cd869
15e1a606
hexa38735

10716981 has 8 divisors (see below), whose sum is σ = 15588384. Its totient is φ = 6495120.

The previous prime is 10716973. The next prime is 10716991. The reversal of 10716981 is 18961701.

10716981 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10716981 - 23 = 10716973 is a prime.

It is a super-2 number, since 2×107169812 = 229707363508722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 324757 = 10716981 / (1 + 0 + 7 + 1 + 6 + 9 + 8 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10716941) 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, 162346 + ... + 162411.

It is an arithmetic number, because the mean of its divisors is an integer number (1948548).

Almost surely, 210716981 is an apocalyptic number.

10716981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10716981 is a deficient number, since it is larger than the sum of its proper divisors (4871403).

10716981 is a wasteful number, since it uses less digits than its factorization.

10716981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324771.

The product of its (nonzero) digits is 3024, while the sum is 33.

The square root of 10716981 is about 3273.6800393441. The cubic root of 10716981 is about 220.4740535386.

The spelling of 10716981 in words is "ten million, seven hundred sixteen thousand, nine hundred eighty-one".

Divisors: 1 3 11 33 324757 974271 3572327 10716981