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8145452 = 2271961251
BaseRepresentation
bin11111000100101000101100
3120022211110102
4133010220230
54041123302
6450330232
7126143450
oct37045054
916284412
108145452
114663887
122889978
1318c26c3
141120660
15aad702
hex7c4a2c

8145452 has 48 divisors (see below), whose sum is σ = 17498880. Its totient is φ = 3240000.

The previous prime is 8145443. The next prime is 8145457. The reversal of 8145452 is 2545418.

8145452 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (8145457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32327 + ... + 32577.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

Almost surely, 28145452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8145452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8749440).

8145452 is an abundant number, since it is smaller than the sum of its proper divisors (9353428).

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

8145452 is a wasteful number, since it uses less digits than its factorization.

8145452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 340 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 8145452 is about 2854.0238261094. The cubic root of 8145452 is about 201.2048273804.

The spelling of 8145452 in words is "eight million, one hundred forty-five thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 19 28 38 61 76 122 133 244 251 266 427 502 532 854 1004 1159 1708 1757 2318 3514 4636 4769 7028 8113 9538 15311 16226 19076 30622 32452 33383 61244 66766 107177 133532 214354 290909 428708 581818 1163636 2036363 4072726 8145452