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61006043031 = 3113179958829
BaseRepresentation
bin111000110100001111…
…100101011110010111
312211110121122002100020
4320310033211132113
51444420021334111
644005323120223
74256533544523
oct706417453627
9184417562306
1061006043031
112396635908a
12b9a6973073
1359a3001b1b
142d4a334d83
1518c0c29906
hexe343e5797

61006043031 has 8 divisors (see below), whose sum is σ = 82061226480. Its totient is φ = 40310777472.

The previous prime is 61006043023. The next prime is 61006043071. The reversal of 61006043031 is 13034060016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61006043031 - 23 = 61006043023 is a prime.

It is a super-2 number, since 2×610060430312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61006042992 and 61006043010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61006043071) 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, 89979076 + ... + 89979753.

It is an arithmetic number, because the mean of its divisors is an integer number (10257653310).

Almost surely, 261006043031 is an apocalyptic number.

61006043031 is a deficient number, since it is larger than the sum of its proper divisors (21055183449).

61006043031 is a wasteful number, since it uses less digits than its factorization.

61006043031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179958945.

The product of its (nonzero) digits is 1296, while the sum is 24.

The spelling of 61006043031 in words is "sixty-one billion, six million, forty-three thousand, thirty-one".

Divisors: 1 3 113 339 179958829 539876487 20335347677 61006043031