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52305144 = 23313915679
BaseRepresentation
bin1100011110000…
…1110011111000
310122102101011120
43013201303320
5101342231034
65105025240
71203405063
oct307416370
9118371146
1052305144
11275856a1
1215625220
13aab46b8
146d378da
1548d2c49
hex31e1cf8

52305144 has 32 divisors (see below), whose sum is σ = 131712000. Its totient is φ = 17308512.

The previous prime is 52305133. The next prime is 52305163. The reversal of 52305144 is 44150325.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 2.

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, 4504 + ... + 11175.

It is an arithmetic number, because the mean of its divisors is an integer number (4116000).

Almost surely, 252305144 is an apocalyptic number.

It is an amenable number.

52305144 is an abundant number, since it is smaller than the sum of its proper divisors (79406856).

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

52305144 is a wasteful number, since it uses less digits than its factorization.

52305144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15827 (or 15823 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 52305144 is about 7232.2295317558. The cubic root of 52305144 is about 373.9797905329.

Adding to 52305144 its reverse (44150325), we get a palindrome (96455469).

The spelling of 52305144 in words is "fifty-two million, three hundred five thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 139 278 417 556 834 1112 1668 3336 15679 31358 47037 62716 94074 125432 188148 376296 2179381 4358762 6538143 8717524 13076286 17435048 26152572 52305144