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1940419607380 = 22597020980369
BaseRepresentation
bin11100001111001010000…
…001010111101101010100
320212111120011211022022221
4130033022001113231110
5223242434404414010
64043225542232124
7260122256344342
oct34171201275524
96774504738287
101940419607380
11688a22310a91
12274096725644
13110c99a22297
1469cb9a26992
153571c512dda
hex1c3ca057b54

1940419607380 has 12 divisors (see below), whose sum is σ = 4074881175540. Its totient is φ = 776167842944.

The previous prime is 1940419607363. The next prime is 1940419607381. The reversal of 1940419607380 is 837069140491.

It can be written as a sum of positive squares in 2 ways, for example, as 740776947856 + 1199642659524 = 860684^2 + 1095282^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940419607381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48510490165 + ... + 48510490204.

It is an arithmetic number, because the mean of its divisors is an integer number (339573431295).

Almost surely, 21940419607380 is an apocalyptic number.

1940419607380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1940419607380 is an abundant number, since it is smaller than the sum of its proper divisors (2134461568160).

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

1940419607380 is a wasteful number, since it uses less digits than its factorization.

1940419607380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97020980378 (or 97020980376 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 1940419607380 in words is "one trillion, nine hundred forty billion, four hundred nineteen million, six hundred seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 97020980369 194041960738 388083921476 485104901845 970209803690 1940419607380