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1408709145 = 35471998169
BaseRepresentation
bin101001111110111…
…0011001000011001
310122011201211122210
41103331303020121
510341112143040
6351441305333
746623554514
oct12375631031
93564654583
101408709145
116631a8038
12333935249
13195b0a90c
14d513bd7b
1583a15480
hex53f73219

1408709145 has 16 divisors (see below), whose sum is σ = 2301891840. Its totient is φ = 735325824.

The previous prime is 1408709087. The next prime is 1408709209. The reversal of 1408709145 is 5419078041.

It is a de Polignac number, because none of the positive numbers 2k-1408709145 is a prime.

It is a super-2 number, since 2×14087091452 = 3968922910413262050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 998380 + ... + 999789.

It is an arithmetic number, because the mean of its divisors is an integer number (143868240).

Almost surely, 21408709145 is an apocalyptic number.

1408709145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1408709145 is a deficient number, since it is larger than the sum of its proper divisors (893182695).

1408709145 is a wasteful number, since it uses less digits than its factorization.

1408709145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998224.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1408709145 is about 37532.7742779561. The cubic root of 1408709145 is about 1121.0038685007.

The spelling of 1408709145 in words is "one billion, four hundred eight million, seven hundred nine thousand, one hundred forty-five".

Divisors: 1 3 5 15 47 141 235 705 1998169 5994507 9990845 29972535 93913943 281741829 469569715 1408709145