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1228752 = 243272353
BaseRepresentation
bin100101011111111010000
32022102112100
410223333100
5303310002
642200400
713305240
oct4537720
92272470
101228752
1176a1a8
124b3100
13340395
1423db20
1519411c
hex12bfd0

1228752 has 120 divisors (see below), whose sum is σ = 4178304. Its totient is φ = 329472.

The previous prime is 1228741. The next prime is 1228763. The reversal of 1228752 is 2578221.

It is an interprime number because it is at equal distance from previous prime (1228741) and next prime (1228763).

It is a congruent number.

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, 23158 + ... + 23210.

21228752 is an apocalyptic number.

1228752 is a gapful number since it is divisible by the number (12) 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 1228752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2089152).

1228752 is an abundant number, since it is smaller than the sum of its proper divisors (2949552).

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

1228752 is a wasteful number, since it uses less digits than its factorization.

1228752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 88 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 1228752 is about 1108.4908659976. The cubic root of 1228752 is about 107.1078773430.

The spelling of 1228752 in words is "one million, two hundred twenty-eight thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 23 24 28 36 42 46 48 53 56 63 69 72 84 92 106 112 126 138 144 159 161 168 184 207 212 252 276 318 322 336 368 371 414 424 477 483 504 552 636 644 742 828 848 954 966 1008 1104 1113 1219 1272 1288 1449 1484 1656 1908 1932 2226 2438 2544 2576 2898 2968 3312 3339 3657 3816 3864 4452 4876 5796 5936 6678 7314 7632 7728 8533 8904 9752 10971 11592 13356 14628 17066 17808 19504 21942 23184 25599 26712 29256 34132 43884 51198 53424 58512 68264 76797 87768 102396 136528 153594 175536 204792 307188 409584 614376 1228752