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149529390 = 2354984313
BaseRepresentation
bin10001110100110…
…10001100101110
3101102100212202120
420322122030232
5301234420030
622500533410
73463656513
oct1072321456
9342325676
10149529390
117745070a
12420b1266
1324c9593a
1415c0530a
15d1da010
hex8e9a32e

149529390 has 16 divisors (see below), whose sum is σ = 358870608. Its totient is φ = 39874496.

The previous prime is 149529353. The next prime is 149529431. The reversal of 149529390 is 93925941.

149529390 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2492127 + ... + 2492186.

It is an arithmetic number, because the mean of its divisors is an integer number (22429413).

Almost surely, 2149529390 is an apocalyptic number.

149529390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149529390 is an abundant number, since it is smaller than the sum of its proper divisors (209341218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149529390 is a wasteful number, since it uses less digits than its factorization.

149529390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4984323.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 149529390 is about 12228.2210480511. The cubic root of 149529390 is about 530.7730382969.

It can be divided in two parts, 14952 and 9390, that added together give a palindrome (24342).

The spelling of 149529390 in words is "one hundred forty-nine million, five hundred twenty-nine thousand, three hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 4984313 9968626 14952939 24921565 29905878 49843130 74764695 149529390