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32894520149 = 79416386331
BaseRepresentation
bin11110101000101010…
…101000101101010101
310010220110211202120002
4132220222220231111
51014331444121044
623040031421045
72243104544051
oct365052505525
9103813752502
1032894520149
1112a5010a947
126460384785
133142c6780a
141840a34c61
15cc7cd474e
hex7a8aa8b55

32894520149 has 4 divisors (see below), whose sum is σ = 33310906560. Its totient is φ = 32478133740.

The previous prime is 32894520137. The next prime is 32894520161. The reversal of 32894520149 is 94102549823.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94102549823 = 671404515669.

It is an interprime number because it is at equal distance from previous prime (32894520137) and next prime (32894520161).

It is a cyclic number.

It is not a de Polignac number, because 32894520149 - 24 = 32894520133 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 (32894520049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208193087 + ... + 208193244.

It is an arithmetic number, because the mean of its divisors is an integer number (8327726640).

Almost surely, 232894520149 is an apocalyptic number.

It is an amenable number.

32894520149 is a deficient number, since it is larger than the sum of its proper divisors (416386411).

32894520149 is an equidigital number, since it uses as much as digits as its factorization.

32894520149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416386410.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 32894520149 in words is "thirty-two billion, eight hundred ninety-four million, five hundred twenty thousand, one hundred forty-nine".

Divisors: 1 79 416386331 32894520149