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2040931700 = 225220409317
BaseRepresentation
bin111100110100110…
…0010010101110100
312021020101001221222
41321221202111310
513134434303300
6534304125512
7101401430123
oct17151422564
95236331858
102040931700
11958064215
1248b606898
13266aa8cc2
141550b1aba
15be29a785
hex79a62574

2040931700 has 18 divisors (see below), whose sum is σ = 4428822006. Its totient is φ = 816372640.

The previous prime is 2040931699. The next prime is 2040931709. The reversal of 2040931700 is 71390402.

It can be written as a sum of positive squares in 3 ways, for example, as 74718736 + 1966212964 = 8644^2 + 44342^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2040931700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040931709) 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, 10204559 + ... + 10204758.

It is an arithmetic number, because the mean of its divisors is an integer number (246045667).

Almost surely, 22040931700 is an apocalyptic number.

2040931700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040931700 is an abundant number, since it is smaller than the sum of its proper divisors (2387890306).

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

2040931700 is a wasteful number, since it uses less digits than its factorization.

2040931700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20409331 (or 20409324 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2040931700 is about 45176.6720775225. The cubic root of 2040931700 is about 1268.4581905518.

The spelling of 2040931700 in words is "two billion, forty million, nine hundred thirty-one thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 20409317 40818634 81637268 102046585 204093170 408186340 510232925 1020465850 2040931700