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68151934 = 254162987
BaseRepresentation
bin1000000111111…
…10101001111110
311202020110212201
410003332221332
5114421330214
610432422114
71455165454
oct403765176
9152213781
1068151934
1135519614
121a9a793a
13111725b6
1490a09d4
155eb3274
hex40fea7e

68151934 has 8 divisors (see below), whose sum is σ = 102418488. Its totient is φ = 34012440.

The previous prime is 68151913. The next prime is 68151959. The reversal of 68151934 is 43915186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×681519342 = 9289372215880712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68151893 and 68151902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30412 + ... + 32575.

It is an arithmetic number, because the mean of its divisors is an integer number (12802311).

Almost surely, 268151934 is an apocalyptic number.

68151934 is a deficient number, since it is larger than the sum of its proper divisors (34266554).

68151934 is a wasteful number, since it uses less digits than its factorization.

68151934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63530.

The product of its digits is 25920, while the sum is 37.

The square root of 68151934 is about 8255.4184630460. The cubic root of 68151934 is about 408.4692753352.

The spelling of 68151934 in words is "sixty-eight million, one hundred fifty-one thousand, nine hundred thirty-four".

Divisors: 1 2 541 1082 62987 125974 34075967 68151934