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228907536 = 243111333349
BaseRepresentation
bin11011010010011…
…01101000010000
3120221201201002220
431221031220100
5432100020121
634414141040
75446452624
oct1551155020
9527651086
10228907536
11108237690
12647b1780
1338568c60
1422589184
15151696c6
hexda4da10

228907536 has 80 divisors (see below), whose sum is σ = 694747200. Its totient is φ = 64028160.

The previous prime is 228907519. The next prime is 228907543. The reversal of 228907536 is 635709822.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9811 + ... + 23538.

It is an arithmetic number, because the mean of its divisors is an integer number (8684340).

Almost surely, 2228907536 is an apocalyptic number.

228907536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

228907536 is an abundant number, since it is smaller than the sum of its proper divisors (465839664).

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

228907536 is a wasteful number, since it uses less digits than its factorization.

228907536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33384 (or 33378 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 228907536 is about 15129.6905454143. The cubic root of 228907536 is about 611.7209629734.

The spelling of 228907536 in words is "two hundred twenty-eight million, nine hundred seven thousand, five hundred thirty-six".

Divisors: 1 2 3 4 6 8 11 12 13 16 22 24 26 33 39 44 48 52 66 78 88 104 132 143 156 176 208 264 286 312 429 528 572 624 858 1144 1716 2288 3432 6864 33349 66698 100047 133396 200094 266792 366839 400188 433537 533584 733678 800376 867074 1100517 1300611 1467356 1600752 1734148 2201034 2601222 2934712 3468296 4402068 4768907 5202444 5869424 6936592 8804136 9537814 10404888 14306721 17608272 19075628 20809776 28613442 38151256 57226884 76302512 114453768 228907536