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1830041725 = 52101724769
BaseRepresentation
bin110110100010100…
…0011100001111101
311201112112202022011
41231011003201331
512221442313400
6501332051221
763231045421
oct15505034175
94645482264
101830041725
1185a013486
12430a63b11
132321ab035
14135096b81
15aa9de8ba
hex6d14387d

1830041725 has 12 divisors (see below), whose sum is σ = 2291722740. Its totient is φ = 1449536000.

The previous prime is 1830041711. The next prime is 1830041747. The reversal of 1830041725 is 5271400381.

It can be written as a sum of positive squares in 6 ways, for example, as 2735716 + 1827306009 = 1654^2 + 42747^2 .

It is not a de Polignac number, because 1830041725 - 223 = 1821653117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 359860 + ... + 364909.

It is an arithmetic number, because the mean of its divisors is an integer number (190976895).

Almost surely, 21830041725 is an apocalyptic number.

It is an amenable number.

1830041725 is a deficient number, since it is larger than the sum of its proper divisors (461681015).

1830041725 is a wasteful number, since it uses less digits than its factorization.

1830041725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724880 (or 724875 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1830041725 is about 42778.9869562148. The cubic root of 1830041725 is about 1223.1704968704.

It can be divided in two parts, 18300 and 41725, that added together give a square (60025 = 2452).

The spelling of 1830041725 in words is "one billion, eight hundred thirty million, forty-one thousand, seven hundred twenty-five".

Divisors: 1 5 25 101 505 2525 724769 3623845 18119225 73201669 366008345 1830041725