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10120181 = 471631321
BaseRepresentation
bin100110100110…
…101111110101
3201001011021112
4212212233311
510042321211
61000524405
7152006621
oct46465765
921034245
1010120181
115792495
123480705
132134496
1414b6181
15d4d88b
hex9a6bf5

10120181 has 8 divisors (see below), whose sum is σ = 10406784. Its totient is φ = 9836640.

The previous prime is 10120169. The next prime is 10120183. The reversal of 10120181 is 18102101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10120181 is a prime.

It is a super-2 number, since 2×101201812 = 204836126945522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120183) 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, 7001 + ... + 8321.

It is an arithmetic number, because the mean of its divisors is an integer number (1300848).

Almost surely, 210120181 is an apocalyptic number.

It is an amenable number.

10120181 is a deficient number, since it is larger than the sum of its proper divisors (286603).

10120181 is a wasteful number, since it uses less digits than its factorization.

10120181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 10120181 is about 3181.2231924214. The cubic root of 10120181 is about 216.3031081208.

Adding to 10120181 its reverse (18102101), we get a palindrome (28222282).

It can be divided in two parts, 10120 and 181, that added together give a palindrome (10301).

The spelling of 10120181 in words is "ten million, one hundred twenty thousand, one hundred eighty-one".

Divisors: 1 47 163 1321 7661 62087 215323 10120181