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68561252 = 2223745231
BaseRepresentation
bin1000001011000…
…10100101100100
311210000021100122
410011202211210
5120022430002
610445301112
71461522014
oct405424544
9153007318
1068561252
11357790a1
121ab64798
13112869b6
149169c44
1560446a2
hex4162964

68561252 has 12 divisors (see below), whose sum is σ = 125198976. Its totient is φ = 32790120.

The previous prime is 68561231. The next prime is 68561261. The reversal of 68561252 is 25216586.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372524 + ... + 372707.

It is an arithmetic number, because the mean of its divisors is an integer number (10433248).

Almost surely, 268561252 is an apocalyptic number.

It is an amenable number.

68561252 is a deficient number, since it is larger than the sum of its proper divisors (56637724).

68561252 is a wasteful number, since it uses less digits than its factorization.

68561252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745258 (or 745256 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 68561252 is about 8280.1722204312. The cubic root of 68561252 is about 409.2853941130.

The spelling of 68561252 in words is "sixty-eight million, five hundred sixty-one thousand, two hundred fifty-two".

Divisors: 1 2 4 23 46 92 745231 1490462 2980924 17140313 34280626 68561252