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52651144 = 23713312333
BaseRepresentation
bin1100100011011…
…0010010001000
310200001221210101
43020312102020
5101434314034
65120255144
71206345610
oct310662210
9120057711
1052651144
11277a1647
12157714b4
13aba6030
146dc7a40
154950514
hex3236488

52651144 has 64 divisors (see below), whose sum is σ = 125475840. Its totient is φ = 20148480.

The previous prime is 52651103. The next prime is 52651217. The reversal of 52651144 is 44115625.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 21402 + ... + 23734.

It is an arithmetic number, because the mean of its divisors is an integer number (1960560).

Almost surely, 252651144 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 52651144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62737920).

52651144 is an abundant number, since it is smaller than the sum of its proper divisors (72824696).

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

52651144 is a wasteful number, since it uses less digits than its factorization.

52651144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 2386 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 52651144 is about 7256.1108040051. The cubic root of 52651144 is about 374.8026078188.

Adding to 52651144 its reverse (44115625), we get a palindrome (96766769).

The spelling of 52651144 in words is "fifty-two million, six hundred fifty-one thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 13 14 26 28 31 52 56 62 91 104 124 182 217 248 364 403 434 728 806 868 1612 1736 2333 2821 3224 4666 5642 9332 11284 16331 18664 22568 30329 32662 60658 65324 72323 121316 130648 144646 212303 242632 289292 424606 506261 578584 849212 940199 1012522 1698424 1880398 2025044 3760796 4050088 6581393 7521592 13162786 26325572 52651144