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1025013 = 31189349
BaseRepresentation
bin11111010001111110101
31221002001110
43322033311
5230300023
633545233
711466243
oct3721765
91832043
101025013
11640120
12415219
1329b722
141c9793
15153a93
hexfa3f5

1025013 has 16 divisors (see below), whose sum is σ = 1512000. Its totient is φ = 612480.

The previous prime is 1025009. The next prime is 1025021. The reversal of 1025013 is 3105201.

It is not a de Polignac number, because 1025013 - 22 = 1025009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1025013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025093) 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, 2763 + ... + 3111.

It is an arithmetic number, because the mean of its divisors is an integer number (94500).

21025013 is an apocalyptic number.

It is an amenable number.

1025013 is a deficient number, since it is larger than the sum of its proper divisors (486987).

1025013 is a wasteful number, since it uses less digits than its factorization.

1025013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 1025013 is about 1012.4292567879. The cubic root of 1025013 is about 100.8269100174.

It can be divided in two parts, 102 and 5013, that added together give a palindrome (5115).

The spelling of 1025013 in words is "one million, twenty-five thousand, thirteen".

Divisors: 1 3 11 33 89 267 349 979 1047 2937 3839 11517 31061 93183 341671 1025013