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1954054423 = 2967381187
BaseRepresentation
bin111010001111000…
…1000000100010111
312001011220020202001
41310132020010113
513000214220143
6521522100131
766265121446
oct16436100427
95034806661
101954054423
11913016012
124664aa647
13251aab529
14147738d5d
15b683914d
hex74788117

1954054423 has 4 divisors (see below), whose sum is σ = 2021435640. Its totient is φ = 1886673208.

The previous prime is 1954054393. The next prime is 1954054429. The reversal of 1954054423 is 3244504591.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1954054423 - 29 = 1954053911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1954054429) 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, 33690565 + ... + 33690622.

It is an arithmetic number, because the mean of its divisors is an integer number (505358910).

Almost surely, 21954054423 is an apocalyptic number.

1954054423 is a deficient number, since it is larger than the sum of its proper divisors (67381217).

1954054423 is an equidigital number, since it uses as much as digits as its factorization.

1954054423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67381216.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1954054423 is about 44204.6877943957. The cubic root of 1954054423 is about 1250.1982454640.

The spelling of 1954054423 in words is "one billion, nine hundred fifty-four million, fifty-four thousand, four hundred twenty-three".

Divisors: 1 29 67381187 1954054423