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204015441605061 = 31910932836864897
BaseRepresentation
bin101110011000110100001011…
…111011001111000111000101
3222202100200111220102120110010
4232120310023323033013011
5203220042111022330221
62001523222222420433
760654425554643442
oct5630641373170705
9882320456376403
10204015441605061
115a007510129399
121aa6b686731719
1389ab75c251218
143854585a9c9c9
15188bd9a9dec76
hexb98d0becf1c5

204015441605061 has 16 divisors (see below), whose sum is σ = 288964411102400. Its totient is φ = 127669730715648.

The previous prime is 204015441604999. The next prime is 204015441605083. The reversal of 204015441605061 is 160506144510402.

It is a de Polignac number, because none of the positive numbers 2k-204015441605061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204015441655061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16418426236 + ... + 16418438661.

It is an arithmetic number, because the mean of its divisors is an integer number (18060275693900).

Almost surely, 2204015441605061 is an apocalyptic number.

It is an amenable number.

204015441605061 is a deficient number, since it is larger than the sum of its proper divisors (84948969497339).

204015441605061 is a wasteful number, since it uses less digits than its factorization.

204015441605061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32836865028.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 204015441605061 in words is "two hundred four trillion, fifteen billion, four hundred forty-one million, six hundred five thousand, sixty-one".

Divisors: 1 3 19 57 109 327 2071 6213 32836864897 98510594691 623900433043 1871701299129 3579218273773 10737654821319 68005147201687 204015441605061