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148679389 = 1910773133
BaseRepresentation
bin10001101110010…
…10101011011101
3101100202200210001
420313022223131
5301030220024
622430414301
73453516415
oct1067125335
9340680701
10148679389
1176a20031
1241961391
1324a58a91
1415a63645
15d0bd244
hex8dcaadd

148679389 has 8 divisors (see below), whose sum is σ = 157969440. Its totient is φ = 139535856.

The previous prime is 148679381. The next prime is 148679449. The reversal of 148679389 is 983976841.

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 148679389 - 23 = 148679381 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 (148679381) 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, 34534 + ... + 38599.

It is an arithmetic number, because the mean of its divisors is an integer number (19746180).

Almost surely, 2148679389 is an apocalyptic number.

148679389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

148679389 is a deficient number, since it is larger than the sum of its proper divisors (9290051).

148679389 is a wasteful number, since it uses less digits than its factorization.

148679389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73259.

The product of its digits is 2612736, while the sum is 55.

The square root of 148679389 is about 12193.4158052615. The cubic root of 148679389 is about 529.7653987218.

The spelling of 148679389 in words is "one hundred forty-eight million, six hundred seventy-nine thousand, three hundred eighty-nine".

Divisors: 1 19 107 2033 73133 1389527 7825231 148679389