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10620145 = 519111791
BaseRepresentation
bin101000100000…
…110011110001
3201222120002201
4220200303301
510204321040
61015343201
7156161344
oct50406361
921876081
1010620145
115aa4088
123681b01
13227ac13
1415a645b
15deba9a
hexa20cf1

10620145 has 8 divisors (see below), whose sum is σ = 13415040. Its totient is φ = 8048880.

The previous prime is 10620143. The next prime is 10620149. The reversal of 10620145 is 54102601.

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

It is not a de Polignac number, because 10620145 - 21 = 10620143 is a prime.

It is a super-2 number, since 2×106201452 = 225574959642050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (10620143) 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, 55801 + ... + 55990.

It is an arithmetic number, because the mean of its divisors is an integer number (1676880).

Almost surely, 210620145 is an apocalyptic number.

It is an amenable number.

10620145 is a deficient number, since it is larger than the sum of its proper divisors (2794895).

10620145 is a wasteful number, since it uses less digits than its factorization.

10620145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111815.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 10620145 is about 3258.8563945041. The cubic root of 10620145 is about 219.8079936310.

Adding to 10620145 its reverse (54102601), we get a palindrome (64722746).

The spelling of 10620145 in words is "ten million, six hundred twenty thousand, one hundred forty-five".

Divisors: 1 5 19 95 111791 558955 2124029 10620145