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1490835149 = 7918871331
BaseRepresentation
bin101100011011100…
…0101011011001101
310211220021021100122
41120313011123031
511023123211044
6403533434325
751641614106
oct13067053315
93756237318
101490835149
116a55a0571
1235733b9a5
131a9b3389b
14101dd93ad
158ad38dee
hex58dc56cd

1490835149 has 4 divisors (see below), whose sum is σ = 1509706560. Its totient is φ = 1471963740.

The previous prime is 1490835119. The next prime is 1490835169. The reversal of 1490835149 is 9415380941.

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 1490835149 - 28 = 1490834893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490835119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9435587 + ... + 9435744.

It is an arithmetic number, because the mean of its divisors is an integer number (377426640).

Almost surely, 21490835149 is an apocalyptic number.

It is an amenable number.

1490835149 is a deficient number, since it is larger than the sum of its proper divisors (18871411).

1490835149 is an equidigital number, since it uses as much as digits as its factorization.

1490835149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18871410.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1490835149 is about 38611.3344628232. The cubic root of 1490835149 is about 1142.3781147995.

The spelling of 1490835149 in words is "one billion, four hundred ninety million, eight hundred thirty-five thousand, one hundred forty-nine".

Divisors: 1 79 18871331 1490835149