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61611000653 = 1741379233231
BaseRepresentation
bin111001011000010011…
…010100001101001101
312220000202222010012002
4321120103110031031
52002134404010103
644145333322045
74310530602416
oct713023241515
9186022863162
1061611000653
1124146892764
12bb35496325
135a6b445107
142da680c80d
151908dc6488
hexe584d434d

61611000653 has 16 divisors (see below), whose sum is σ = 67002888960. Its totient is φ = 56423001600.

The previous prime is 61611000643. The next prime is 61611000707. The reversal of 61611000653 is 35600011616.

It is a cyclic number.

It is not a de Polignac number, because 61611000653 - 28 = 61611000397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61611000643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147548 + ... + 380778.

It is an arithmetic number, because the mean of its divisors is an integer number (4187680560).

Almost surely, 261611000653 is an apocalyptic number.

It is an amenable number.

61611000653 is a deficient number, since it is larger than the sum of its proper divisors (5391888307).

61611000653 is a wasteful number, since it uses less digits than its factorization.

61611000653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233668.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 61611000653 in words is "sixty-one billion, six hundred eleven million, six hundred fifty-three", and thus it is an aban number.

Divisors: 1 17 41 379 697 6443 15539 233231 264163 3964927 9562471 88394549 162562007 1502707333 3624176509 61611000653