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61253472 = 253791151
BaseRepresentation
bin1110100110101…
…0011101100000
311021020222222010
43221222131200
5111140102342
610024512520
71342434360
oct351523540
9137228863
1061253472
1131637705
121861b740
13c8c8677
1481c69a0
15559e29c
hex3a6a760

61253472 has 48 divisors (see below), whose sum is σ = 183762432. Its totient is φ = 17500800.

The previous prime is 61253471. The next prime is 61253483. The reversal of 61253472 is 27435216.

61253472 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 (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61253471) 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 7 ways as a sum of consecutive naturals, for example, 44904 + ... + 46247.

It is an arithmetic number, because the mean of its divisors is an integer number (3828384).

Almost surely, 261253472 is an apocalyptic number.

It is an amenable number.

61253472 is an abundant number, since it is smaller than the sum of its proper divisors (122508960).

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

61253472 is a wasteful number, since it uses less digits than its factorization.

61253472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91171 (or 91163 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 61253472 is about 7826.4597360492. The cubic root of 61253472 is about 394.1942062672.

Adding to 61253472 its reverse (27435216), we get a palindrome (88688688).

The spelling of 61253472 in words is "sixty-one million, two hundred fifty-three thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 91151 182302 273453 364604 546906 638057 729208 1093812 1276114 1458416 1914171 2187624 2552228 2916832 3828342 4375248 5104456 7656684 8750496 10208912 15313368 20417824 30626736 61253472