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61006055 = 5111958379
BaseRepresentation
bin1110100010111…
…0000011100111
311020210102120112
43220232003213
5111104143210
610015323235
71340354135
oct350560347
9136712515
1061006055
1131488830
121852051b
13c83cb76
148160755
155550d05
hex3a2e0e7

61006055 has 16 divisors (see below), whose sum is σ = 84067200. Its totient is φ = 42032160.

The previous prime is 61006019. The next prime is 61006063. The reversal of 61006055 is 55060016.

It is not a de Polignac number, because 61006055 - 210 = 61005031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61006055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28145 + ... + 30234.

It is an arithmetic number, because the mean of its divisors is an integer number (5254200).

Almost surely, 261006055 is an apocalyptic number.

61006055 is a deficient number, since it is larger than the sum of its proper divisors (23061145).

61006055 is a wasteful number, since it uses less digits than its factorization.

61006055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58414.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 61006055 is about 7810.6372979418. The cubic root of 61006055 is about 393.6627427374.

The spelling of 61006055 in words is "sixty-one million, six thousand, fifty-five".

Divisors: 1 5 11 19 55 95 209 1045 58379 291895 642169 1109201 3210845 5546005 12201211 61006055