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2572869 = 313371783
BaseRepresentation
bin1001110100001001000101
311211201022110
421310021011
51124312434
6131051233
730604035
oct11641105
94751273
102572869
1114a8042
12a40b19
136c1110
144ad8c5
1535c4e9
hex274245

2572869 has 16 divisors (see below), whose sum is σ = 3796352. Its totient is φ = 1539648.

The previous prime is 2572859. The next prime is 2572877. The reversal of 2572869 is 9682752.

It is a happy number.

It is not a de Polignac number, because 2572869 - 27 = 2572741 is a prime.

It is a super-2 number, since 2×25728692 = 13239309782322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a d-powerful number, because it can be written as 212 + 5 + 77 + 216 + 82 + 68 + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572859) 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, 552 + ... + 2334.

It is an arithmetic number, because the mean of its divisors is an integer number (237272).

22572869 is an apocalyptic number.

It is an amenable number.

2572869 is a deficient number, since it is larger than the sum of its proper divisors (1223483).

2572869 is a wasteful number, since it uses less digits than its factorization.

2572869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its digits is 60480, while the sum is 39.

The square root of 2572869 is about 1604.0165211119. The cubic root of 2572869 is about 137.0269185388.

The spelling of 2572869 in words is "two million, five hundred seventy-two thousand, eight hundred sixty-nine".

Divisors: 1 3 13 37 39 111 481 1443 1783 5349 23179 65971 69537 197913 857623 2572869