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227345620 = 225531391543
BaseRepresentation
bin11011000110100…
…00010011010100
3120211210100120011
431203100103110
5431200024440
634320450004
75430256135
oct1543202324
9524710504
10227345620
11107370147
1264179904
1338140048
142229dc8c
1514e5b9ea
hexd8d04d4

227345620 has 48 divisors (see below), whose sum is σ = 490250880. Its totient is φ = 88523136.

The previous prime is 227345611. The next prime is 227345669. The reversal of 227345620 is 26543722.

It is a congruent number.

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, 146569 + ... + 148111.

It is an arithmetic number, because the mean of its divisors is an integer number (10213560).

Almost surely, 2227345620 is an apocalyptic number.

227345620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227345620 is an abundant number, since it is smaller than the sum of its proper divisors (262905260).

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

227345620 is a wasteful number, since it uses less digits than its factorization.

227345620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1744 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 227345620 is about 15077.9846133361. The cubic root of 227345620 is about 610.3264578818.

The spelling of 227345620 in words is "two hundred twenty-seven million, three hundred forty-five thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 139 212 265 278 530 556 695 1060 1390 1543 2780 3086 6172 7367 7715 14734 15430 29468 30860 36835 73670 81779 147340 163558 214477 327116 408895 428954 817790 857908 1072385 1635580 2144770 4289540 11367281 22734562 45469124 56836405 113672810 227345620