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68297088 = 273296133
BaseRepresentation
bin1000001001000…
…10000110000000
311202111211222210
410010202012000
5114441001323
610435502120
71456341606
oct404420600
9152454883
1068297088
1135608682
121aa57940
13111c36a2
1490db876
155ee1293
hex4122180

68297088 has 64 divisors (see below), whose sum is σ = 187700400. Its totient is φ = 21977088.

The previous prime is 68297083. The next prime is 68297093. The reversal of 68297088 is 88079286.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68297083) and next prime (68297093).

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68297081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8070 + ... + 14202.

Almost surely, 268297088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68297088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93850200).

68297088 is an abundant number, since it is smaller than the sum of its proper divisors (119403312).

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

68297088 is a wasteful number, since it uses less digits than its factorization.

68297088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6179 (or 6167 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 68297088 is about 8264.2052249445. The cubic root of 68297088 is about 408.7590636638.

The spelling of 68297088 in words is "sixty-eight million, two hundred ninety-seven thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 29 32 48 58 64 87 96 116 128 174 192 232 348 384 464 696 928 1392 1856 2784 3712 5568 6133 11136 12266 18399 24532 36798 49064 73596 98128 147192 177857 196256 294384 355714 392512 533571 588768 711428 785024 1067142 1177536 1422856 2134284 2355072 2845712 4268568 5691424 8537136 11382848 17074272 22765696 34148544 68297088