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2993155 = 51154421
BaseRepresentation
bin1011011010110000000011
312122001211121
423122300003
51231240110
6144053111
734304254
oct13326003
95561747
102993155
111764890
121004197
1380a4c9
1457cb2b
153e1cda
hex2dac03

2993155 has 8 divisors (see below), whose sum is σ = 3918384. Its totient is φ = 2176800.

The previous prime is 2993153. The next prime is 2993167. The reversal of 2993155 is 5513992.

It is a happy number.

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

It is not a de Polignac number, because 2993155 - 21 = 2993153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2993155.

It is not an unprimeable number, because it can be changed into a prime (2993153) 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, 27156 + ... + 27265.

It is an arithmetic number, because the mean of its divisors is an integer number (489798).

22993155 is an apocalyptic number.

2993155 is a deficient number, since it is larger than the sum of its proper divisors (925229).

2993155 is a wasteful number, since it uses less digits than its factorization.

2993155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54437.

The product of its digits is 12150, while the sum is 34.

The square root of 2993155 is about 1730.0736978522. The cubic root of 2993155 is about 144.1151824063.

It can be divided in two parts, 29931 and 55, that multiplied together give a triangular number (1646205 = T1814).

The spelling of 2993155 in words is "two million, nine hundred ninety-three thousand, one hundred fifty-five".

Divisors: 1 5 11 55 54421 272105 598631 2993155