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68227129454 = 2112281930287
BaseRepresentation
bin111111100010101001…
…110110000001101110
320112002212101021200112
4333202221312001232
52104212121120304
651202040100022
74633506013601
oct774251660156
9215085337615
1068227129454
1126a31488200
1211281164612
136584065b23
1434333a2338
151b94b65b6e
hexfe2a7606e

68227129454 has 12 divisors (see below), whose sum is σ = 112490184912. Its totient is φ = 31012331460.

The previous prime is 68227129441. The next prime is 68227129457. The reversal of 68227129454 is 45492172286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68227129457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 140964902 + ... + 140965385.

It is an arithmetic number, because the mean of its divisors is an integer number (9374182076).

Almost surely, 268227129454 is an apocalyptic number.

68227129454 is a deficient number, since it is larger than the sum of its proper divisors (44263055458).

68227129454 is a wasteful number, since it uses less digits than its factorization.

68227129454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281930311 (or 281930300 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 50.

The spelling of 68227129454 in words is "sixty-eight billion, two hundred twenty-seven million, one hundred twenty-nine thousand, four hundred fifty-four".

Divisors: 1 2 11 22 121 242 281930287 563860574 3101233157 6202466314 34113564727 68227129454