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1444964479 = 72101291971
BaseRepresentation
bin101011000100000…
…0110100001111111
310201200221210121221
41112020012201333
510424402330404
6355214334211
750543665300
oct12610064177
93650853557
101444964479
11681710222
12343aba367
131a0492b8a
14d9c987a7
1586cc7954
hex5620687f

1444964479 has 12 divisors (see below), whose sum is σ = 1697525208. Its totient is φ = 1226274000.

The previous prime is 1444964461. The next prime is 1444964491. The reversal of 1444964479 is 9744694441.

It is not a de Polignac number, because 1444964479 - 25 = 1444964447 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 (1445964479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 141037 + ... + 150934.

It is an arithmetic number, because the mean of its divisors is an integer number (141460434).

Almost surely, 21444964479 is an apocalyptic number.

1444964479 is a deficient number, since it is larger than the sum of its proper divisors (252560729).

1444964479 is a wasteful number, since it uses less digits than its factorization.

1444964479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292086 (or 292079 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The square root of 1444964479 is about 38012.6883947979. The cubic root of 1444964479 is about 1130.5394555333.

The spelling of 1444964479 in words is "one billion, four hundred forty-four million, nine hundred sixty-four thousand, four hundred seventy-nine".

Divisors: 1 7 49 101 707 4949 291971 2043797 14306579 29489071 206423497 1444964479