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52975072 = 2523167431
BaseRepresentation
bin1100101000010…
…1010111100000
310200200102010201
43022011113200
5102030200242
65131234544
71212165163
oct312052740
9120612121
1052975072
11279a2a57
12158a8a54
13ac8a5c7
14706dada
1549b64b7
hex32855e0

52975072 has 48 divisors (see below), whose sum is σ = 109734912. Its totient is φ = 25125760.

The previous prime is 52975051. The next prime is 52975081. The reversal of 52975072 is 27057925.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 122697 + ... + 123127.

It is an arithmetic number, because the mean of its divisors is an integer number (2286144).

Almost surely, 252975072 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 52975072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54867456).

52975072 is an abundant number, since it is smaller than the sum of its proper divisors (56759840).

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

52975072 is a wasteful number, since it uses less digits than its factorization.

52975072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 52975072 is about 7278.3976258514. The cubic root of 52975072 is about 375.5696751860.

The spelling of 52975072 in words is "fifty-two million, nine hundred seventy-five thousand, seventy-two".

Divisors: 1 2 4 8 16 23 32 46 92 167 184 334 368 431 668 736 862 1336 1724 2672 3448 3841 5344 6896 7682 9913 13792 15364 19826 30728 39652 61456 71977 79304 122912 143954 158608 287908 317216 575816 1151632 1655471 2303264 3310942 6621884 13243768 26487536 52975072