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2245706580 = 2235132879111
BaseRepresentation
bin1000010111011010…
…1100001101010100
312210111200201021210
42011312230031110
514044400102310
61010501141420
7106436122335
oct20566541524
95714621253
102245706580
11a52708657
125280ba870
1329a345780
1417437828c
15d2249820
hex85dac354

2245706580 has 48 divisors (see below), whose sum is σ = 6771671424. Its totient is φ = 552789120.

The previous prime is 2245706537. The next prime is 2245706581. The reversal of 2245706580 is 856075422.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245706581) 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, 1438776 + ... + 1440335.

It is an arithmetic number, because the mean of its divisors is an integer number (141076488).

Almost surely, 22245706580 is an apocalyptic number.

2245706580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2245706580 is an abundant number, since it is smaller than the sum of its proper divisors (4525964844).

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

2245706580 is a wasteful number, since it uses less digits than its factorization.

2245706580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2879136 (or 2879134 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 2245706580 is about 47388.8866718770. The cubic root of 2245706580 is about 1309.5366891008.

The spelling of 2245706580 in words is "two billion, two hundred forty-five million, seven hundred six thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 2879111 5758222 8637333 11516444 14395555 17274666 28791110 34549332 37428443 43186665 57582220 74856886 86373330 112285329 149713772 172746660 187142215 224570658 374284430 449141316 561426645 748568860 1122853290 2245706580