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2025028621 = 71159445747
BaseRepresentation
bin111100010110011…
…0111110000001101
312020010110010001001
41320230313300031
513121401403441
6532535220301
7101116313350
oct17054676015
95203403031
102025028621
1194a091a80
12486217691
132636cb5b5
14152d32297
15bcba8731
hex78b37c0d

2025028621 has 16 divisors (see below), whose sum is σ = 2567508480. Its totient is φ = 1551196080.

The previous prime is 2025028613. The next prime is 2025028631. The reversal of 2025028621 is 1268205202.

It is not a de Polignac number, because 2025028621 - 23 = 2025028613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2025028621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2025028631) 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 15 ways as a sum of consecutive naturals, for example, 218331 + ... + 227416.

It is an arithmetic number, because the mean of its divisors is an integer number (160469280).

Almost surely, 22025028621 is an apocalyptic number.

It is an amenable number.

2025028621 is a deficient number, since it is larger than the sum of its proper divisors (542479859).

2025028621 is a wasteful number, since it uses less digits than its factorization.

2025028621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445824.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2025028621 is about 45000.3180099874. The cubic root of 2025028621 is about 1265.1549583903.

The spelling of 2025028621 in words is "two billion, twenty-five million, twenty-eight thousand, six hundred twenty-one".

Divisors: 1 7 11 59 77 413 649 4543 445747 3120229 4903217 26299073 34322519 184093511 289289803 2025028621