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61100083 = 115554553
BaseRepresentation
bin1110100100010…
…1000000110011
311020222012120001
43221011000303
5111120200313
610021330431
71341225232
oct351050063
9136865501
1061100083
1131542440
1218566a17
13c8738c5
148186b19
15556dadd
hex3a45033

61100083 has 4 divisors (see below), whose sum is σ = 66654648. Its totient is φ = 55545520.

The previous prime is 61100077. The next prime is 61100089. The reversal of 61100083 is 38000116.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (61100077) and next prime (61100089).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61100083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61100083.

It is not an unprimeable number, because it can be changed into a prime (61100089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2777266 + ... + 2777287.

It is an arithmetic number, because the mean of its divisors is an integer number (16663662).

Almost surely, 261100083 is an apocalyptic number.

61100083 is a deficient number, since it is larger than the sum of its proper divisors (5554565).

61100083 is a wasteful number, since it uses less digits than its factorization.

61100083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5554564.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 61100083 is about 7816.6542075238. The cubic root of 61100083 is about 393.8648883525.

Adding to 61100083 its reverse (38000116), we get a palindrome (99100199).

The spelling of 61100083 in words is "sixty-one million, one hundred thousand, eighty-three".

Divisors: 1 11 5554553 61100083