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68835480 = 23357192227
BaseRepresentation
bin1000001101001…
…01100010011000
311210112012112020
410012211202120
5120110213410
610455214440
71464043350
oct406454230
9153465466
1068835480
113594612a
121b077420
131135176c
1491dbb60
15609aa70
hex41a5898

68835480 has 192 divisors, whose sum is σ = 250179840. Its totient is φ = 14840064.

The previous prime is 68835463. The next prime is 68835509. The reversal of 68835480 is 8453886.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 303127 + ... + 303353.

It is an arithmetic number, because the mean of its divisors is an integer number (1303020).

Almost surely, 268835480 is an apocalyptic number.

68835480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68835480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125089920).

68835480 is an abundant number, since it is smaller than the sum of its proper divisors (181344360).

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

68835480 is a wasteful number, since it uses less digits than its factorization.

68835480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 68835480 is about 8296.7150125818. The cubic root of 68835480 is about 409.8303482121.

The spelling of 68835480 in words is "sixty-eight million, eight hundred thirty-five thousand, four hundred eighty".