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52283970 = 23255397113
BaseRepresentation
bin1100011101110…
…0101001000010
310122101022010100
43013130221002
5101341041340
65104343230
71203256254
oct307345102
9118338110
1052283970
11275707a2
1215614b16
13aaa7b7b
146d2dcd4
1548cb830
hex31dca42

52283970 has 96 divisors (see below), whose sum is σ = 141169392. Its totient is φ = 13418496.

The previous prime is 52283947. The next prime is 52284007. The reversal of 52283970 is 7938225.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 11029041 + 41254929 = 3321^2 + 6423^2 .

It is a super-2 number, since 2×522839702 = 5467227037921800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462634 + ... + 462746.

Almost surely, 252283970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52283970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70584696).

52283970 is an abundant number, since it is smaller than the sum of its proper divisors (88885422).

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

52283970 is a wasteful number, since it uses less digits than its factorization.

52283970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 52283970 is about 7230.7655196390. The cubic root of 52283970 is about 373.9293192902.

The spelling of 52283970 in words is "fifty-two million, two hundred eighty-three thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 53 90 97 106 113 159 194 226 265 291 318 339 477 485 530 565 582 678 795 873 954 970 1017 1130 1455 1590 1695 1746 2034 2385 2910 3390 4365 4770 5085 5141 5989 8730 10170 10282 10961 11978 15423 17967 21922 25705 29945 30846 32883 35934 46269 51410 53901 54805 59890 65766 77115 89835 92538 98649 107802 109610 154230 164415 179670 197298 231345 269505 328830 462690 493245 539010 580933 986490 1161866 1742799 2904665 3485598 5228397 5809330 8713995 10456794 17427990 26141985 52283970