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7869042 = 233145723
BaseRepresentation
bin11110000001001001110010
3112210210022000
4132001021302
54003302132
6440354430
7123612546
oct36011162
915723260
107869042
114495145
122775a16
13182694c
14108ba26
15a5687c
hex781272

7869042 has 16 divisors (see below), whose sum is σ = 17486880. Its totient is φ = 2622996.

The previous prime is 7869041. The next prime is 7869053. The reversal of 7869042 is 2409687.

It is a d-powerful number, because it can be written as 78 + 87 + 63 + 93 + 0 + 46 + 211 .

It is a junction number, because it is equal to n+sod(n) for n = 7868988 and 7869006.

It is not an unprimeable number, because it can be changed into a prime (7869041) 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, 72808 + ... + 72915.

It is an arithmetic number, because the mean of its divisors is an integer number (1092930).

Almost surely, 27869042 is an apocalyptic number.

7869042 is an abundant number, since it is smaller than the sum of its proper divisors (9617838).

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

7869042 is a wasteful number, since it uses less digits than its factorization.

7869042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145734 (or 145728 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 7869042 is about 2805.1812775648. The cubic root of 7869042 is about 198.9026737195.

The spelling of 7869042 in words is "seven million, eight hundred sixty-nine thousand, forty-two".

Divisors: 1 2 3 6 9 18 27 54 145723 291446 437169 874338 1311507 2623014 3934521 7869042