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30032031149 = 291154989669
BaseRepresentation
bin11011111110000011…
…000110110110101101
32212111222120020211222
4123332003012312231
5443001144444044
621444014353125
72112136024061
oct337603066655
985458506758
1030032031149
111181133155a
1259a17bb7a5
132aa7bcb743
14164c7c5aa1
15bab8548ee
hex6fe0c6dad

30032031149 has 8 divisors (see below), whose sum is σ = 31070655000. Its totient is φ = 28993609792.

The previous prime is 30032031121. The next prime is 30032031167. The reversal of 30032031149 is 94113023003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9341222500 + 20690808649 = 96650^2 + 143843^2 .

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

It is a de Polignac number, because none of the positive numbers 2k-30032031149 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 (30032031049) 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, 290087 + ... + 379755.

It is an arithmetic number, because the mean of its divisors is an integer number (3883831875).

Almost surely, 230032031149 is an apocalyptic number.

It is an amenable number.

30032031149 is a deficient number, since it is larger than the sum of its proper divisors (1038623851).

30032031149 is a wasteful number, since it uses less digits than its factorization.

30032031149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101247.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 30032031149 in words is "thirty billion, thirty-two million, thirty-one thousand, one hundred forty-nine".

Divisors: 1 29 11549 89669 334921 2600401 1035587281 30032031149