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2801214 = 2321311971
BaseRepresentation
bin1010101011111000111110
312021022112200
422223320332
51204114324
6140012330
732544543
oct12537076
95238480
102801214
111643659
12b310a6
13771030
1452cbca
153a4ec9
hex2abe3e

2801214 has 24 divisors (see below), whose sum is σ = 6536712. Its totient is φ = 861840.

The previous prime is 2801179. The next prime is 2801219. The reversal of 2801214 is 4121082.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801219) 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, 5752 + ... + 6219.

It is an arithmetic number, because the mean of its divisors is an integer number (272363).

22801214 is an apocalyptic number.

2801214 is an abundant number, since it is smaller than the sum of its proper divisors (3735498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2801214 is a wasteful number, since it uses less digits than its factorization.

2801214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11992 (or 11989 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2801214 is about 1673.6827656399. The cubic root of 2801214 is about 140.9663417472.

Adding to 2801214 its reverse (4121082), we get a palindrome (6922296).

The spelling of 2801214 in words is "two million, eight hundred one thousand, two hundred fourteen".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 11971 23942 35913 71826 107739 155623 215478 311246 466869 933738 1400607 2801214