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2902401 = 321971637
BaseRepresentation
bin1011000100100110000001
312110110100100
423010212001
51220334101
6142113013
733445545
oct13044601
95413310
102902401
111702687
12b7b769
137a80c8
14557a25
153c4e86
hex2c4981

2902401 has 12 divisors (see below), whose sum is σ = 4216212. Its totient is φ = 1923936.

The previous prime is 2902397. The next prime is 2902411. The reversal of 2902401 is 1042092.

It can be written as a sum of positive squares in 2 ways, for example, as 1498176 + 1404225 = 1224^2 + 1185^2 .

It is not a de Polignac number, because 2902401 - 22 = 2902397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2902411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 955 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (351351).

22902401 is an apocalyptic number.

It is an amenable number.

2902401 is a deficient number, since it is larger than the sum of its proper divisors (1313811).

2902401 is a wasteful number, since it uses less digits than its factorization.

2902401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1837 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2902401 is about 1703.6434486124. The cubic root of 2902401 is about 142.6436593706.

Adding to 2902401 its reverse (1042092), we get a palindrome (3944493).

The spelling of 2902401 in words is "two million, nine hundred two thousand, four hundred one".

Divisors: 1 3 9 197 591 1637 1773 4911 14733 322489 967467 2902401