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542181245 = 51929196799
BaseRepresentation
bin100000010100010…
…000011101111101
31101210012122211212
4200110100131331
52102244244440
6125444454205
716302315224
oct4024203575
91353178755
10542181245
11259057881
121316aa365
1388433708
1452015cbb
15328eb465
hex2051077d

542181245 has 16 divisors (see below), whose sum is σ = 708480000. Its totient is φ = 396744768.

The previous prime is 542181229. The next prime is 542181247.

542181245 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 542181245 - 24 = 542181229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542181247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95645 + ... + 101154.

It is an arithmetic number, because the mean of its divisors is an integer number (44280000).

Almost surely, 2542181245 is an apocalyptic number.

It is an amenable number.

542181245 is a deficient number, since it is larger than the sum of its proper divisors (166298755).

542181245 is a wasteful number, since it uses less digits than its factorization.

542181245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196852.

The product of its digits is 12800, while the sum is 32.

The square root of 542181245 is about 23284.7856979617. The cubic root of 542181245 is about 815.4202582444.

The spelling of 542181245 in words is "five hundred forty-two million, one hundred eighty-one thousand, two hundred forty-five".

Divisors: 1 5 19 29 95 145 551 2755 196799 983995 3739181 5707171 18695905 28535855 108436249 542181245