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233285130 = 23351366463
BaseRepresentation
bin11011110011110…
…10011000001010
3121020222010001000
431321322120022
5434210111010
635052035430
75531614401
oct1571723012
9536863030
10233285130
1110a757631
1266162b76
133943c650
1422da8638
15157317c0
hexde7a60a

233285130 has 64 divisors (see below), whose sum is σ = 669957120. Its totient is φ = 57423168.

The previous prime is 233285099. The next prime is 233285131. The reversal of 233285130 is 31582332.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 233285094 and 233285103.

It is not an unprimeable number, because it can be changed into a prime (233285131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29722 + ... + 36741.

It is an arithmetic number, because the mean of its divisors is an integer number (10468080).

Almost surely, 2233285130 is an apocalyptic number.

233285130 is an abundant number, since it is smaller than the sum of its proper divisors (436671990).

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

233285130 is a wasteful number, since it uses less digits than its factorization.

233285130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66492 (or 66486 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 233285130 is about 15273.6744105667. The cubic root of 233285130 is about 615.5958532071.

The spelling of 233285130 in words is "two hundred thirty-three million, two hundred eighty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 90 117 130 135 195 234 270 351 390 585 702 1170 1755 3510 66463 132926 199389 332315 398778 598167 664630 864019 996945 1196334 1728038 1794501 1993890 2592057 2990835 3589002 4320095 5184114 5981670 7776171 8640190 8972505 12960285 15552342 17945010 23328513 25920570 38880855 46657026 77761710 116642565 233285130