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68928592890 = 2352297619763
BaseRepresentation
bin100000000110001110…
…1101101101111111010
320120220202022022121210
41000030131231233322
52112131204433030
651355414543550
74660054241523
oct1001435555772
9216822268553
1068928592890
1127261437053
1211438067bb6
136666498351
14349c5db84a
151bd6526bb0
hex100c76dbfa

68928592890 has 16 divisors (see below), whose sum is σ = 165428623008. Its totient is φ = 18380958096.

The previous prime is 68928592883. The next prime is 68928592897. The reversal of 68928592890 is 9829582986.

It is an interprime number because it is at equal distance from previous prime (68928592883) and next prime (68928592897).

It is not an unprimeable number, because it can be changed into a prime (68928592897) 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, 1148809852 + ... + 1148809911.

It is an arithmetic number, because the mean of its divisors is an integer number (10339288938).

Almost surely, 268928592890 is an apocalyptic number.

68928592890 is an abundant number, since it is smaller than the sum of its proper divisors (96500030118).

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

68928592890 is a wasteful number, since it uses less digits than its factorization.

68928592890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2297619773.

The product of its (nonzero) digits is 44789760, while the sum is 66.

The spelling of 68928592890 in words is "sixty-eight billion, nine hundred twenty-eight million, five hundred ninety-two thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 2297619763 4595239526 6892859289 11488098815 13785718578 22976197630 34464296445 68928592890