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68807232480 = 25357128915887
BaseRepresentation
bin100000000010100111…
…0110000101111100000
320120121021221120102210
41000011032300233200
52111404122414410
651335401442120
74654051553220
oct1000516605740
9216537846383
1068807232480
11271a9986198
12114034a0340
1366472b615c
14348a44a080
151bcaa53220
hex10053b0be0

68807232480 has 192 divisors, whose sum is σ = 247913809920. Its totient is φ = 15714177024.

The previous prime is 68807232463. The next prime is 68807232497. The reversal of 68807232480 is 8423270886.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68807232463) and next prime (68807232497).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4323097 + ... + 4338983.

It is an arithmetic number, because the mean of its divisors is an integer number (1291217760).

Almost surely, 268807232480 is an apocalyptic number.

68807232480 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 68807232480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123956904960).

68807232480 is an abundant number, since it is smaller than the sum of its proper divisors (179106577440).

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

68807232480 is a wasteful number, since it uses less digits than its factorization.

68807232480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17201 (or 17193 counting only the distinct ones).

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

The spelling of 68807232480 in words is "sixty-eight billion, eight hundred seven million, two hundred thirty-two thousand, four hundred eighty".