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155483493 = 3114711621
BaseRepresentation
bin10010100010001…
…11110101100101
3101211120101020220
421101013311211
5304300432433
623232314553
73565405434
oct1121076545
9354511226
10155483493
117a848060
12440a2a59
132629ba89
141691511b
15d9b42b3
hex9447d65

155483493 has 8 divisors (see below), whose sum is σ = 226157856. Its totient is φ = 94232400.

The previous prime is 155483491. The next prime is 155483533. The reversal of 155483493 is 394384551.

155483493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 155483493 - 21 = 155483491 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155483491) 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, 2355778 + ... + 2355843.

It is an arithmetic number, because the mean of its divisors is an integer number (28269732).

Almost surely, 2155483493 is an apocalyptic number.

It is an amenable number.

155483493 is a deficient number, since it is larger than the sum of its proper divisors (70674363).

155483493 is a wasteful number, since it uses less digits than its factorization.

155483493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711635.

The product of its digits is 259200, while the sum is 42.

The square root of 155483493 is about 12469.3020253742. The cubic root of 155483493 is about 537.7264874248.

The spelling of 155483493 in words is "one hundred fifty-five million, four hundred eighty-three thousand, four hundred ninety-three".

Divisors: 1 3 11 33 4711621 14134863 51827831 155483493