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68951450 = 2521379029
BaseRepresentation
bin1000001110000…
…01110110011010
311210202002121102
410013001312122
5120122421300
610501511402
71465035431
oct407016632
9153662542
1068951450
1135a15277
121b112562
1311392499
14922c118
1560c00d5
hex41c1d9a

68951450 has 12 divisors (see below), whose sum is σ = 128249790. Its totient is φ = 27580560.

The previous prime is 68951429. The next prime is 68951453. The reversal of 68951450 is 5415986.

It can be written as a sum of positive squares in 3 ways, for example, as 57138481 + 11812969 = 7559^2 + 3437^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68951453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689465 + ... + 689564.

Almost surely, 268951450 is an apocalyptic number.

68951450 is a deficient number, since it is larger than the sum of its proper divisors (59298340).

68951450 is a wasteful number, since it uses less digits than its factorization.

68951450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379041 (or 1379036 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 68951450 is about 8303.7009820923. The cubic root of 68951450 is about 410.0603718357.

The spelling of 68951450 in words is "sixty-eight million, nine hundred fifty-one thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 1379029 2758058 6895145 13790290 34475725 68951450