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1954114057 = 7279159151
BaseRepresentation
bin111010001111001…
…0110101000001001
312001012000021112201
41310132112220021
513000223122212
6521523240201
766265460350
oct16436265011
95035007481
101954114057
119130568a5
12466519061
13251acc70c
14147752997
15b684bb57
hex74796a09

1954114057 has 4 divisors (see below), whose sum is σ = 2233273216. Its totient is φ = 1674954900.

The previous prime is 1954114049. The next prime is 1954114067. The reversal of 1954114057 is 7504114591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1954114057 - 23 = 1954114049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1954114007) 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, 139579569 + ... + 139579582.

It is an arithmetic number, because the mean of its divisors is an integer number (558318304).

Almost surely, 21954114057 is an apocalyptic number.

It is an amenable number.

1954114057 is a deficient number, since it is larger than the sum of its proper divisors (279159159).

1954114057 is an equidigital number, since it uses as much as digits as its factorization.

1954114057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279159158.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 1954114057 is about 44205.3623104709. The cubic root of 1954114057 is about 1250.2109632203.

The spelling of 1954114057 in words is "one billion, nine hundred fifty-four million, one hundred fourteen thousand, fifty-seven".

Divisors: 1 7 279159151 1954114057