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2572245040 = 245139231317
BaseRepresentation
bin1001100101010001…
…0101100000110000
320122021010120211211
42121110111200300
520231443320130
61103124045504
7120512502451
oct23124254060
96567116754
102572245040
1110aaa68852
125b9533894
1331cba5ab1
141a5899128
15100c4ba2a
hex99515830

2572245040 has 40 divisors (see below), whose sum is σ = 6023520720. Its totient is φ = 1021491456.

The previous prime is 2572245037. The next prime is 2572245041. The reversal of 2572245040 is 405422752.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2572244993 and 2572245011.

It is not an unprimeable number, because it can be changed into a prime (2572245041) 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, 104539 + ... + 126778.

It is an arithmetic number, because the mean of its divisors is an integer number (150588018).

Almost surely, 22572245040 is an apocalyptic number.

2572245040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2572245040 is an abundant number, since it is smaller than the sum of its proper divisors (3451275680).

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

2572245040 is a wasteful number, since it uses less digits than its factorization.

2572245040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231469 (or 231463 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 2572245040 is about 50717.3051334552. The cubic root of 2572245040 is about 1370.1584060358.

Adding to 2572245040 its reverse (405422752), we get a palindrome (2977667792).

The spelling of 2572245040 in words is "two billion, five hundred seventy-two million, two hundred forty-five thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 139 278 556 695 1112 1390 2224 2780 5560 11120 231317 462634 925268 1156585 1850536 2313170 3701072 4626340 9252680 18505360 32153063 64306126 128612252 160765315 257224504 321530630 514449008 643061260 1286122520 2572245040