Search a number
-
+
72410112 = 2103697
BaseRepresentation
bin1000101000011…
…10010000000000
312001020211000000
410110032100000
5122014110422
611104000000
71536322125
oct424162000
9161224000
1072410112
1137967875
1220300000
1312003828
14988c74c
156554cac
hex450e400

72410112 has 154 divisors (see below), whose sum is σ = 219262358. Its totient is φ = 23887872.

The previous prime is 72410099. The next prime is 72410153. The reversal of 72410112 is 21101427.

It can be written as a sum of positive squares in only one way, i.e., 60466176 + 11943936 = 7776^2 + 3456^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 746448 + ... + 746544.

Almost surely, 272410112 is an apocalyptic number.

72410112 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72410112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109631179).

72410112 is an abundant number, since it is smaller than the sum of its proper divisors (146852246).

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

72410112 is an frugal number, since it uses more digits than its factorization.

72410112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 72410112 is about 8509.4131407518. The cubic root of 72410112 is about 416.8051467885.

Adding to 72410112 its reverse (21101427), we get a palindrome (93511539).

The spelling of 72410112 in words is "seventy-two million, four hundred ten thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 97 108 128 144 162 192 194 216 243 256 288 291 324 384 388 432 486 512 576 582 648 729 768 776 864 873 972 1024 1152 1164 1296 1458 1536 1552 1728 1746 1944 2304 2328 2592 2619 2916 3072 3104 3456 3492 3888 4608 4656 5184 5238 5832 6208 6912 6984 7776 7857 9216 9312 10368 10476 11664 12416 13824 13968 15552 15714 18624 20736 20952 23328 23571 24832 27648 27936 31104 31428 37248 41472 41904 46656 47142 49664 55872 62208 62856 70713 74496 82944 83808 93312 94284 99328 111744 124416 125712 141426 148992 167616 186624 188568 223488 248832 251424 282852 297984 335232 373248 377136 446976 502848 565704 670464 746496 754272 893952 1005696 1131408 1340928 1508544 2011392 2262816 2681856 3017088 4022784 4525632 6034176 8045568 9051264 12068352 18102528 24136704 36205056 72410112