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68437488 = 24371491367
BaseRepresentation
bin1000001010001…
…00010111110000
311202202222120210
410011010113300
5120004444423
610442504120
71460465130
oct405042760
9152688523
1068437488
11356a4109
121ab05040
1311242572
149136ac0
15601cb93
hex41445f0

68437488 has 80 divisors (see below), whose sum is σ = 203558400. Its totient is φ = 19408128.

The previous prime is 68437471. The next prime is 68437507. The reversal of 68437488 is 88473486.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49381 + ... + 50747.

It is an arithmetic number, because the mean of its divisors is an integer number (2544480).

Almost surely, 268437488 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 68437488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101779200).

68437488 is an abundant number, since it is smaller than the sum of its proper divisors (135120912).

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

68437488 is a wasteful number, since it uses less digits than its factorization.

68437488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534 (or 1528 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 68437488 is about 8272.6953286097. The cubic root of 68437488 is about 409.0389706272.

The spelling of 68437488 in words is "sixty-eight million, four hundred thirty-seven thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 149 168 298 336 447 596 894 1043 1192 1367 1788 2086 2384 2734 3129 3576 4101 4172 5468 6258 7152 8202 8344 9569 10936 12516 16404 16688 19138 21872 25032 28707 32808 38276 50064 57414 65616 76552 114828 153104 203683 229656 407366 459312 611049 814732 1222098 1425781 1629464 2444196 2851562 3258928 4277343 4888392 5703124 8554686 9776784 11406248 17109372 22812496 34218744 68437488