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2540224880 = 245231380557
BaseRepresentation
bin1001011101101000…
…1100000101110000
320120000212210102222
42113122030011300
520200244144010
61100021500212
7116643361304
oct22732140560
96500783388
102540224880
111093988606
125aa871668
1331637445b
141a1521d04
15ed024355
hex9768c170

2540224880 has 40 divisors (see below), whose sum is σ = 6162810912. Its totient is φ = 971911424.

The previous prime is 2540224879. The next prime is 2540224901. The reversal of 2540224880 is 884220452.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2540224880.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688439 + ... + 692118.

Almost surely, 22540224880 is an apocalyptic number.

2540224880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2540224880 is an abundant number, since it is smaller than the sum of its proper divisors (3622586032).

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

2540224880 is a wasteful number, since it uses less digits than its factorization.

2540224880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1380593 (or 1380587 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 35.

The square root of 2540224880 is about 50400.6436466837. The cubic root of 2540224880 is about 1364.4492547546.

The spelling of 2540224880 in words is "two billion, five hundred forty million, two hundred twenty-four thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 1380557 2761114 5522228 6902785 11044456 13805570 22088912 27611140 31752811 55222280 63505622 110444560 127011244 158764055 254022488 317528110 508044976 635056220 1270112440 2540224880