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61106345 = 547673881
BaseRepresentation
bin1110100100011…
…0100010101001
311020222112010222
43221012202221
5111120400340
610021415425
71341252416
oct351064251
9136875128
1061106345
1131547113
121856a575
13c876701
14818910d
1555708b5
hex3a468a9

61106345 has 16 divisors (see below), whose sum is σ = 76025088. Its totient is φ = 47118720.

The previous prime is 61106327. The next prime is 61106387. The reversal of 61106345 is 54360116.

It is not a de Polignac number, because 61106345 - 214 = 61089961 is a prime.

It is a Duffinian number.

It is a Curzon 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, 13805 + ... + 17685.

It is an arithmetic number, because the mean of its divisors is an integer number (4751568).

Almost surely, 261106345 is an apocalyptic number.

It is an amenable number.

61106345 is a deficient number, since it is larger than the sum of its proper divisors (14918743).

61106345 is a wasteful number, since it uses less digits than its factorization.

61106345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 61106345 is about 7817.0547522708. The cubic root of 61106345 is about 393.8783433134.

The spelling of 61106345 in words is "sixty-one million, one hundred six thousand, three hundred forty-five".

Divisors: 1 5 47 67 235 335 3149 3881 15745 19405 182407 260027 912035 1300135 12221269 61106345