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68944032 = 2532239389
BaseRepresentation
bin1000001110000…
…00000010100000
311210201201102200
410013000002200
5120122202112
610501413200
71465005003
oct407000240
9153651380
1068944032
1135a0a743
121b10a200
131138bcb1
14922953a
1560bccdc
hex41c00a0

68944032 has 36 divisors (see below), whose sum is σ = 196060410. Its totient is φ = 22981248.

The previous prime is 68944021. The next prime is 68944067. The reversal of 68944032 is 23044986.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 65999376 + 2944656 = 8124^2 + 1716^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119407 + ... + 119982.

Almost surely, 268944032 is an apocalyptic number.

It is an amenable number.

68944032 is an abundant number, since it is smaller than the sum of its proper divisors (127116378).

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

68944032 is a wasteful number, since it uses less digits than its factorization.

68944032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239405 (or 239394 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 68944032 is about 8303.2543017783. The cubic root of 68944032 is about 410.0456661409.

The spelling of 68944032 in words is "sixty-eight million, nine hundred forty-four thousand, thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 239389 478778 718167 957556 1436334 1915112 2154501 2872668 3830224 4309002 5745336 7660448 8618004 11490672 17236008 22981344 34472016 68944032