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542056830 = 23572581223
BaseRepresentation
bin100000010011110…
…010000101111110
31101202222100011220
4200103302011332
52102231304310
6125442054210
716301256420
oct4023620576
91352870156
10542056830
11258a82357
1213164a366
13883bbbb3
1451dc2810
15328c4670
hex204f217e

542056830 has 32 divisors (see below), whose sum is σ = 1486785024. Its totient is φ = 123898656.

The previous prime is 542056829. The next prime is 542056831. The reversal of 542056830 is 38650245.

It is an interprime number because it is at equal distance from previous prime (542056829) and next prime (542056831).

It is a junction number, because it is equal to n+sod(n) for n = 542056791 and 542056800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542056831) 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, 1290402 + ... + 1290821.

It is an arithmetic number, because the mean of its divisors is an integer number (46462032).

Almost surely, 2542056830 is an apocalyptic number.

542056830 is an abundant number, since it is smaller than the sum of its proper divisors (944728194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542056830 is a wasteful number, since it uses less digits than its factorization.

542056830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2581240.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 542056830 is about 23282.1139504127. The cubic root of 542056830 is about 815.3578816417.

The spelling of 542056830 in words is "five hundred forty-two million, fifty-six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 2581223 5162446 7743669 12906115 15487338 18068561 25812230 36137122 38718345 54205683 77436690 90342805 108411366 180685610 271028415 542056830