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1444978974 = 23240829829
BaseRepresentation
bin101011000100000…
…1010000100011110
310201200222112111210
41112020022010132
510424403311344
6355214525250
750544055455
oct12610120436
93650875453
101444978974
116817200aa
12343b06826
131a049965a
14d9c9db9c
1586ccbdb9
hex5620a11e

1444978974 has 8 divisors (see below), whose sum is σ = 2889957960. Its totient is φ = 481659656.

The previous prime is 1444978973. The next prime is 1444978987. The reversal of 1444978974 is 4798794441.

It is a sphenic number, since it is the product of 3 distinct primes.

1444978974 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444978973) 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, 120414909 + ... + 120414920.

It is an arithmetic number, because the mean of its divisors is an integer number (361244745).

Almost surely, 21444978974 is an apocalyptic number.

1444978974 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1444978974 is a wasteful number, since it uses less digits than its factorization.

1444978974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240829834.

The product of its digits is 8128512, while the sum is 57.

The square root of 1444978974 is about 38012.8790543416. The cubic root of 1444978974 is about 1130.5432358141.

The spelling of 1444978974 in words is "one billion, four hundred forty-four million, nine hundred seventy-eight thousand, nine hundred seventy-four".

Divisors: 1 2 3 6 240829829 481659658 722489487 1444978974