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228415850 = 252131272767
BaseRepresentation
bin11011001110101…
…01100101101010
3120220210201122022
431213111211222
5431433301400
634355424442
75442334265
oct1547254552
9526721568
10228415850
11107a31233
12645b5122
1338426210
142249bcdc
15150bdb85
hexd9d596a

228415850 has 48 divisors (see below), whose sum is σ = 461303808. Its totient is φ = 83643840.

The previous prime is 228415823. The next prime is 228415867. The reversal of 228415850 is 58514822.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 228415850.

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, 81167 + ... + 83933.

It is an arithmetic number, because the mean of its divisors is an integer number (9610496).

Almost surely, 2228415850 is an apocalyptic number.

228415850 is an abundant number, since it is smaller than the sum of its proper divisors (232887958).

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

228415850 is a wasteful number, since it uses less digits than its factorization.

228415850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919 (or 2914 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 228415850 is about 15113.4327669130. The cubic root of 228415850 is about 611.2826633767.

The spelling of 228415850 in words is "two hundred twenty-eight million, four hundred fifteen thousand, eight hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 127 130 254 325 635 650 1270 1651 2767 3175 3302 5534 6350 8255 13835 16510 27670 35971 41275 69175 71942 82550 138350 179855 351409 359710 702818 899275 1757045 1798550 3514090 4568317 8785225 9136634 17570450 22841585 45683170 114207925 228415850