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55103048 = 23721113983
BaseRepresentation
bin1101001000110…
…0111001001000
310211200112011122
43102030321020
5103101244143
65245014412
71236240200
oct322147110
9124615148
1055103048
1129116810
1216554408
13b554070
147465400
154c86c68
hex348ce48

55103048 has 96 divisors (see below), whose sum is σ = 141341760. Its totient is φ = 19797120.

The previous prime is 55103047. The next prime is 55103063. The reversal of 55103048 is 84030155.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (55103047) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 55565 + ... + 56547.

It is an arithmetic number, because the mean of its divisors is an integer number (1472310).

Almost surely, 255103048 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 55103048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70670880).

55103048 is an abundant number, since it is smaller than the sum of its proper divisors (86238712).

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

55103048 is a wasteful number, since it uses less digits than its factorization.

55103048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 55103048 is about 7423.1427306768. The cubic root of 55103048 is about 380.5326049570.

It can be divided in two parts, 5510 and 3048, that added together give a palindrome (8558).

The spelling of 55103048 in words is "fifty-five million, one hundred three thousand, forty-eight".

Divisors: 1 2 4 7 8 11 13 14 22 26 28 44 49 52 56 77 88 91 98 104 143 154 182 196 286 308 364 392 539 572 616 637 728 983 1001 1078 1144 1274 1966 2002 2156 2548 3932 4004 4312 5096 6881 7007 7864 8008 10813 12779 13762 14014 21626 25558 27524 28028 43252 48167 51116 55048 56056 75691 86504 89453 96334 102232 140569 151382 178906 192668 281138 302764 357812 385336 529837 562276 605528 626171 715624 983983 1059674 1124552 1252342 1967966 2119348 2504684 3935932 4238696 5009368 6887881 7871864 13775762 27551524 55103048