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1489264379 = 17115375979
BaseRepresentation
bin101100011000100…
…0101111011111011
310211210022110122222
41120301011323323
511022222430004
6403440034255
751622352441
oct13061057373
93753273588
101489264379
116a4718409
1235690298b
131a9703935
14101b0ab91
158ab287be
hex58c45efb

1489264379 has 8 divisors (see below), whose sum is σ = 1578256560. Its totient is φ = 1400426496.

The previous prime is 1489264369. The next prime is 1489264423. The reversal of 1489264379 is 9734629841.

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

It is a cyclic number.

It is not a de Polignac number, because 1489264379 - 24 = 1489264363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1489264379.

It is not an unprimeable number, because it can be changed into a prime (1489264339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18389 + ... + 57590.

It is an arithmetic number, because the mean of its divisors is an integer number (197282070).

Almost surely, 21489264379 is an apocalyptic number.

1489264379 is a deficient number, since it is larger than the sum of its proper divisors (88992181).

1489264379 is a wasteful number, since it uses less digits than its factorization.

1489264379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77149.

The product of its digits is 2612736, while the sum is 53.

The square root of 1489264379 is about 38590.9883133355. The cubic root of 1489264379 is about 1141.9767639526.

The spelling of 1489264379 in words is "one billion, four hundred eighty-nine million, two hundred sixty-four thousand, three hundred seventy-nine".

Divisors: 1 17 1153 19601 75979 1291643 87603787 1489264379