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1061931 = 31373373
BaseRepresentation
bin100000011010000101011
31222221200210
410003100223
5232440211
634432203
712012003
oct4032053
91887623
101061931
11665932
12432663
132b2480
141d9003
1515e9a6
hex10342b

1061931 has 16 divisors (see below), whose sum is σ = 1549856. Its totient is φ = 642816.

The previous prime is 1061917. The next prime is 1061959. The reversal of 1061931 is 1391601.

It is a happy number.

It is not a de Polignac number, because 1061931 - 26 = 1061867 is a prime.

It is a super-2 number, since 2×10619312 = 2255394897522, which contains 22 as substring.

It is the 1031-st Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1061898 and 1061907.

It is not an unprimeable number, because it can be changed into a prime (1061911) by changing a digit.

It is a nontrivial repunit in base 1030.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661 + ... + 3033.

It is an arithmetic number, because the mean of its divisors is an integer number (96866).

21061931 is an apocalyptic number.

1061931 is a deficient number, since it is larger than the sum of its proper divisors (487925).

1061931 is a wasteful number, since it uses less digits than its factorization.

1061931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1061931 is about 1030.5003639010. The cubic root of 1061931 is about 102.0231589090.

The spelling of 1061931 in words is "one million, sixty-one thousand, nine hundred thirty-one".

Divisors: 1 3 13 39 73 219 373 949 1119 2847 4849 14547 27229 81687 353977 1061931