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2040523700 = 225220405237
BaseRepresentation
bin111100110011111…
…1110101110110100
312021012121100021212
41321213332232310
513134333224300
6534251300552
7101365110455
oct17147765664
95235540255
102040523700
11957905726
1248b44a758
13266995397
1415500712c
15be219935
hex799febb4

2040523700 has 18 divisors (see below), whose sum is σ = 4427936646. Its totient is φ = 816209440.

The previous prime is 2040523697. The next prime is 2040523703. The reversal of 2040523700 is 73250402.

It is an interprime number because it is at equal distance from previous prime (2040523697) and next prime (2040523703).

It can be written as a sum of positive squares in 3 ways, for example, as 286421776 + 1754101924 = 16924^2 + 41882^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040523703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10202519 + ... + 10202718.

Almost surely, 22040523700 is an apocalyptic number.

2040523700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040523700 is an abundant number, since it is smaller than the sum of its proper divisors (2387412946).

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

2040523700 is a wasteful number, since it uses less digits than its factorization.

2040523700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20405251 (or 20405244 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2040523700 is about 45172.1562469626. The cubic root of 2040523700 is about 1268.3736596434.

The spelling of 2040523700 in words is "two billion, forty million, five hundred twenty-three thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 20405237 40810474 81620948 102026185 204052370 408104740 510130925 1020261850 2040523700