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2630155 = 511172997
BaseRepresentation
bin1010000010001000001011
311221121220011
422002020023
51133131110
6132212351
731233043
oct12021013
94847804
102630155
111537090
12a6a0b7
13711208
144c6723
1536e48a
hex28220b

2630155 has 32 divisors (see below), whose sum is σ = 3810240. Its totient is φ = 1720320.

The previous prime is 2630153. The next prime is 2630171. The reversal of 2630155 is 5510362.

It is a happy number.

It is not a de Polignac number, because 2630155 - 21 = 2630153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2630153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27067 + ... + 27163.

It is an arithmetic number, because the mean of its divisors is an integer number (119070).

22630155 is an apocalyptic number.

2630155 is a deficient number, since it is larger than the sum of its proper divisors (1180085).

2630155 is a wasteful number, since it uses less digits than its factorization.

2630155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2630155 is about 1621.7752618658. The cubic root of 2630155 is about 138.0364497990.

The spelling of 2630155 in words is "two million, six hundred thirty thousand, one hundred fifty-five".

Divisors: 1 5 11 17 29 55 85 97 145 187 319 485 493 935 1067 1595 1649 2465 2813 5335 5423 8245 14065 18139 27115 30943 47821 90695 154715 239105 526031 2630155