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6161330145 = 3517414991181
BaseRepresentation
bin1011011110011111…
…00110111111100001
3120220101122000000210
411233033212333201
5100104300031040
62455214404333
7305453304435
oct55717467741
916811560023
106161330145
112681a01593
12123b5006a9
13772633aa9
144264069c5
15260da4480
hex16f3e6fe1

6161330145 has 64 divisors (see below), whose sum is σ = 10723104000. Its totient is φ = 3008716800.

The previous prime is 6161330107. The next prime is 6161330167. The reversal of 6161330145 is 5410331616.

It is not a de Polignac number, because 6161330145 - 213 = 6161321953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5216455 + ... + 5217635.

It is an arithmetic number, because the mean of its divisors is an integer number (167548500).

Almost surely, 26161330145 is an apocalyptic number.

It is an amenable number.

6161330145 is a deficient number, since it is larger than the sum of its proper divisors (4561773855).

6161330145 is a wasteful number, since it uses less digits than its factorization.

6161330145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6161330145 is about 78494.1408322940. The cubic root of 6161330145 is about 1833.2632256570.

The spelling of 6161330145 in words is "six billion, one hundred sixty-one million, three hundred thirty thousand, one hundred forty-five".

Divisors: 1 3 5 15 17 41 51 85 123 205 255 499 615 697 1181 1497 2091 2495 3485 3543 5905 7485 8483 10455 17715 20077 20459 25449 42415 48421 60231 61377 100385 102295 127245 145263 242105 301155 306885 347803 589319 726315 823157 1043409 1739015 1767957 2469471 2946595 4115785 5217045 8839785 10018423 12347355 24162079 30055269 50092115 72486237 120810395 150276345 362431185 410755343 1232266029 2053776715 6161330145