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68003331 = 3112187337
BaseRepresentation
bin1000000110110…
…10011000000011
311201221221000220
410003122120003
5114402101311
610425314123
71454006304
oct403323003
9151857026
1068003331
1135427a00
121a935943
131111ca76
1490627ab
155e84206
hex40da603

68003331 has 12 divisors (see below), whose sum is σ = 99663816. Its totient is φ = 41213920.

The previous prime is 68003323. The next prime is 68003371. The reversal of 68003331 is 13330086.

It is not a de Polignac number, because 68003331 - 23 = 68003323 is a prime.

It is a super-2 number, since 2×680033312 = 9248906054191122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68003371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93306 + ... + 94031.

It is an arithmetic number, because the mean of its divisors is an integer number (8305318).

Almost surely, 268003331 is an apocalyptic number.

68003331 is a deficient number, since it is larger than the sum of its proper divisors (31660485).

68003331 is a wasteful number, since it uses less digits than its factorization.

68003331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187362 (or 187351 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 68003331 is about 8246.4132203037. The cubic root of 68003331 is about 408.1721747854.

The spelling of 68003331 in words is "sixty-eight million, three thousand, three hundred thirty-one".

Divisors: 1 3 11 33 121 363 187337 562011 2060707 6182121 22667777 68003331