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28497060 = 22325315107
BaseRepresentation
bin110110010110…
…1010010100100
31222121210121200
41230231102210
524243401220
62454442500
7464135544
oct154552244
958553550
1028497060
11150a4299
129663430
135b99b87
143adb324
15277d890
hex1b2d4a4

28497060 has 72 divisors (see below), whose sum is σ = 89246976. Its totient is φ = 7352640.

The previous prime is 28497041. The next prime is 28497071. The reversal of 28497060 is 6079482.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3027 + ... + 8133.

Almost surely, 228497060 is an apocalyptic number.

28497060 is a gapful number since it is divisible by the number (20) 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 28497060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44623488).

28497060 is an abundant number, since it is smaller than the sum of its proper divisors (60749916).

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

28497060 is a wasteful number, since it uses less digits than its factorization.

28497060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153 (or 5148 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 28497060 is about 5338.2637626854. The cubic root of 28497060 is about 305.4452334630.

It can be divided in two parts, 284 and 97060, that added together give a square (97344 = 3122).

The spelling of 28497060 in words is "twenty-eight million, four hundred ninety-seven thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 31 36 45 60 62 90 93 124 155 180 186 279 310 372 465 558 620 930 1116 1395 1860 2790 5107 5580 10214 15321 20428 25535 30642 45963 51070 61284 76605 91926 102140 153210 158317 183852 229815 306420 316634 459630 474951 633268 791585 919260 949902 1424853 1583170 1899804 2374755 2849706 3166340 4749510 5699412 7124265 9499020 14248530 28497060