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2153355230505 = 351091111315697
BaseRepresentation
bin11111010101011101111…
…110010011110100101001
321121212012000202201211010
4133111131332103310221
5240240032414334010
64325123203454133
7311401102312323
oct37253576236451
97555160681733
102153355230505
11760261987306
122a9402387349
131280a2c92c0b
1476319ab6613
153b03141e620
hex1f55df93d29

2153355230505 has 16 divisors (see below), whose sum is σ = 3445402564224. Its totient is φ = 1148444724480.

The previous prime is 2153355230503. The next prime is 2153355230651. The reversal of 2153355230505 is 5050325533512.

It is not a de Polignac number, because 2153355230505 - 21 = 2153355230503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2153355230503) 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, 978817 + ... + 2294513.

It is an arithmetic number, because the mean of its divisors is an integer number (215337660264).

Almost surely, 22153355230505 is an apocalyptic number.

It is an amenable number.

2153355230505 is a deficient number, since it is larger than the sum of its proper divisors (1292047333719).

2153355230505 is a wasteful number, since it uses less digits than its factorization.

2153355230505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424816.

The product of its (nonzero) digits is 337500, while the sum is 39.

The spelling of 2153355230505 in words is "two trillion, one hundred fifty-three billion, three hundred fifty-five million, two hundred thirty thousand, five hundred five".

Divisors: 1 3 5 15 109111 327333 545555 1315697 1636665 3947091 6578485 19735455 143557015367 430671046101 717785076835 2153355230505