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2948981 = 72973199
BaseRepresentation
bin1011001111111101110101
312112211020112
423033331311
51223331411
6143112405
734031420
oct13177565
95484215
102948981
111734682
12ba2705
137c3379
1456a9b7
153d3b8b
hex2cff75

2948981 has 16 divisors (see below), whose sum is σ = 3552000. Its totient is φ = 2395008.

The previous prime is 2948977. The next prime is 2948987. The reversal of 2948981 is 1898492.

It is not a de Polignac number, because 2948981 - 22 = 2948977 is a prime.

It is a super-2 number, since 2×29489812 = 17392977876722, 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 (2948987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14720 + ... + 14918.

It is an arithmetic number, because the mean of its divisors is an integer number (222000).

22948981 is an apocalyptic number.

It is an amenable number.

2948981 is a deficient number, since it is larger than the sum of its proper divisors (603019).

2948981 is a wasteful number, since it uses less digits than its factorization.

2948981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308.

The product of its digits is 41472, while the sum is 41.

The square root of 2948981 is about 1717.2597357418. The cubic root of 2948981 is about 143.4026988334.

The spelling of 2948981 in words is "two million, nine hundred forty-eight thousand, nine hundred eighty-one".

Divisors: 1 7 29 73 199 203 511 1393 2117 5771 14527 14819 40397 101689 421283 2948981