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542041975 = 521931131281
BaseRepresentation
bin100000010011101…
…110011101110111
31101202221120210201
4200103232131313
52102230320400
6125441501331
716301165206
oct4023563567
91352846721
10542041975
11258a72182
12131641847
13883b51c7
1451dbb23d
15328c006a
hex204ee777

542041975 has 48 divisors (see below), whose sum is σ = 738524160. Its totient is φ = 393120000.

The previous prime is 542041949. The next prime is 542041979. The reversal of 542041975 is 579140245.

It is not a de Polignac number, because 542041975 - 219 = 541517687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542041979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1928835 + ... + 1929115.

It is an arithmetic number, because the mean of its divisors is an integer number (15385920).

Almost surely, 2542041975 is an apocalyptic number.

542041975 is the 14725-th heptagonal number and also the 12445-th nonagonal number.

542041975 is a deficient number, since it is larger than the sum of its proper divisors (196482185).

542041975 is a wasteful number, since it uses less digits than its factorization.

542041975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 542041975 is about 23281.7949265086. The cubic root of 542041975 is about 815.3504333132.

The spelling of 542041975 in words is "five hundred forty-two million, forty-one thousand, nine hundred seventy-five".

Divisors: 1 5 19 25 31 95 131 155 281 475 589 655 775 1405 2489 2945 3275 4061 5339 7025 8711 12445 14725 20305 26695 36811 43555 62225 77159 101525 133475 165509 184055 217775 385795 699409 827545 920275 1141141 1928975 3497045 4137725 5705705 17485225 21681679 28528525 108408395 542041975