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2520985189 = 19347382373
BaseRepresentation
bin1001011001000011…
…0010111001100101
320111200200022112211
42112100302321211
520130333011224
61054053243421
7116321010022
oct22620627145
96450608484
102520985189
111084037538
125a4333571
13312399118
1419cb54549
15eb4c3894
hex96432e65

2520985189 has 8 divisors (see below), whose sum is σ = 2661323040. Its totient is φ = 2381412816.

The previous prime is 2520985183. The next prime is 2520985211. The reversal of 2520985189 is 9815890252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2520985189 - 221 = 2518888037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520985183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184594 + ... + 197779.

It is an arithmetic number, because the mean of its divisors is an integer number (332665380).

Almost surely, 22520985189 is an apocalyptic number.

It is an amenable number.

2520985189 is a deficient number, since it is larger than the sum of its proper divisors (140337851).

2520985189 is a wasteful number, since it uses less digits than its factorization.

2520985189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382739.

The product of its (nonzero) digits is 518400, while the sum is 49.

The square root of 2520985189 is about 50209.4133504864. The cubic root of 2520985189 is about 1360.9957365068.

The spelling of 2520985189 in words is "two billion, five hundred twenty million, nine hundred eighty-five thousand, one hundred eighty-nine".

Divisors: 1 19 347 6593 382373 7265087 132683431 2520985189