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6145105061 = 54799112139
BaseRepresentation
bin1011011100100011…
…01101110010100101
3120212021002200101202
411232101231302211
5100041121330221
62453434532245
7305165350124
oct55621556245
916767080352
106145105061
11267382a427
121235b97085
1376c172954
144241c1abb
1525e74bd0b
hex16e46dca5

6145105061 has 4 divisors (see below), whose sum is σ = 6145272000. Its totient is φ = 6144938124.

The previous prime is 6145105049. The next prime is 6145105079. The reversal of 6145105061 is 1605015416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6145105061 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 (6145105081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1271 + ... + 110868.

It is an arithmetic number, because the mean of its divisors is an integer number (1536318000).

Almost surely, 26145105061 is an apocalyptic number.

It is an amenable number.

6145105061 is a deficient number, since it is larger than the sum of its proper divisors (166939).

6145105061 is a wasteful number, since it uses less digits than its factorization.

6145105061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166938.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 6145105061 is about 78390.7205031310. The cubic root of 6145105061 is about 1831.6525887132.

The spelling of 6145105061 in words is "six billion, one hundred forty-five million, one hundred five thousand, sixty-one".

Divisors: 1 54799 112139 6145105061