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61825248 = 2533163439
BaseRepresentation
bin1110101111011…
…0000011100000
311022100001022000
43223312003200
5111311401443
610045044000
71350335352
oct353660340
9138301260
1061825248
1131998251
1218856600
13ca689b4
1482d50d2
1556638d3
hex3af60e0

61825248 has 96 divisors (see below), whose sum is σ = 181843200. Its totient is φ = 20435328.

The previous prime is 61825241. The next prime is 61825249. The reversal of 61825248 is 84252816.

61825248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×618252482 = 7644722580523008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61825241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140613 + ... + 141051.

It is an arithmetic number, because the mean of its divisors is an integer number (1894200).

Almost surely, 261825248 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 61825248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90921600).

61825248 is an abundant number, since it is smaller than the sum of its proper divisors (120017952).

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

61825248 is a wasteful number, since it uses less digits than its factorization.

61825248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 607 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 61825248 is about 7862.9032805955. The cubic root of 61825248 is about 395.4169564964.

The spelling of 61825248 in words is "sixty-one million, eight hundred twenty-five thousand, two hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 163 216 288 326 432 439 489 652 864 878 978 1304 1317 1467 1756 1956 2608 2634 2934 3512 3912 3951 4401 5216 5268 5868 7024 7824 7902 8802 10536 11736 11853 14048 15648 15804 17604 21072 23472 23706 31608 35208 42144 46944 47412 63216 70416 71557 94824 126432 140832 143114 189648 214671 286228 379296 429342 572456 644013 858684 1144912 1288026 1717368 1932039 2289824 2576052 3434736 3864078 5152104 6869472 7728156 10304208 15456312 20608416 30912624 61825248