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542630130261 = 3712547559297
BaseRepresentation
bin1111110010101110100…
…01101011001001010101
31220212121211022201011220
413321113101223021111
532342301303132021
61053140354520553
754126611001402
oct7712721531125
91825554281156
10542630130261
1119a14562030a
12891b9896159
133c22909261b
141c398c372a9
15e1ad49ccc6
hex7e5746b255

542630130261 has 8 divisors (see below), whose sum is σ = 733697077824. Its totient is φ = 356658301440.

The previous prime is 542630130233. The next prime is 542630130269. The reversal of 542630130261 is 162031036245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 542630130261 - 229 = 542093259349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542630130269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273779436 + ... + 1273779861.

It is an arithmetic number, because the mean of its divisors is an integer number (91712134728).

Almost surely, 2542630130261 is an apocalyptic number.

It is an amenable number.

542630130261 is a deficient number, since it is larger than the sum of its proper divisors (191066947563).

542630130261 is a wasteful number, since it uses less digits than its factorization.

542630130261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547559371.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 542630130261 in words is "five hundred forty-two billion, six hundred thirty million, one hundred thirty thousand, two hundred sixty-one".

Divisors: 1 3 71 213 2547559297 7642677891 180876710087 542630130261