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145152618 = 231312714653
BaseRepresentation
bin10001010011011…
…01101001101010
3101010010111221220
420221231221222
5244124340433
622223042510
73411530322
oct1051555152
9333114856
10145152618
1174a31346
1240740436
13240c2730
14153c6282
15cb232b3
hex8a6da6a

145152618 has 32 divisors (see below), whose sum is σ = 315119616. Its totient is φ = 44307648.

The previous prime is 145152607. The next prime is 145152629. The reversal of 145152618 is 816251541.

145152618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145152607) and next prime (145152629).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2580 + ... + 17232.

It is an arithmetic number, because the mean of its divisors is an integer number (9847488).

Almost surely, 2145152618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145152618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157559808).

145152618 is an abundant number, since it is smaller than the sum of its proper divisors (169966998).

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

145152618 is a wasteful number, since it uses less digits than its factorization.

145152618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14798.

The product of its digits is 9600, while the sum is 33.

The square root of 145152618 is about 12047.9300296773. The cubic root of 145152618 is about 525.5430426361.

The spelling of 145152618 in words is "one hundred forty-five million, one hundred fifty-two thousand, six hundred eighteen".

Divisors: 1 2 3 6 13 26 39 78 127 254 381 762 1651 3302 4953 9906 14653 29306 43959 87918 190489 380978 571467 1142934 1860931 3721862 5582793 11165586 24192103 48384206 72576309 145152618