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2839401 = 331031021
BaseRepresentation
bin1010110101001101101001
312100020221000
422311031221
51211330101
6140505213
733064065
oct12651551
95306830
102839401
11166a314
12b4b209
13785526
1453caa5
153b1486
hex2b5369

2839401 has 16 divisors (see below), whose sum is σ = 4251520. Its totient is φ = 1872720.

The previous prime is 2839399. The next prime is 2839409. The reversal of 2839401 is 1049382.

It is not a de Polignac number, because 2839401 - 21 = 2839399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2839409) 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, 2271 + ... + 3291.

It is an arithmetic number, because the mean of its divisors is an integer number (265720).

22839401 is an apocalyptic number.

It is an amenable number.

2839401 is a deficient number, since it is larger than the sum of its proper divisors (1412119).

2839401 is a wasteful number, since it uses less digits than its factorization.

2839401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2839401 is about 1685.0522247100. The cubic root of 2839401 is about 141.6040181279.

It can be divided in two parts, 2839 and 401, that added together give a triangular number (3240 = T80).

The spelling of 2839401 in words is "two million, eight hundred thirty-nine thousand, four hundred one".

Divisors: 1 3 9 27 103 309 927 1021 2781 3063 9189 27567 105163 315489 946467 2839401