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68942412 = 2232721121719
BaseRepresentation
bin1000001101111…
…11101001001100
311210201122012200
410012333221030
5120122124122
610501401500
71465000200
oct406775114
9153648180
1068942412
1135a09500
121b109290
131138b336
149228b00
1560bc5ac
hex41bfa4c

68942412 has 324 divisors, whose sum is σ = 248353560. Its totient is φ = 15966720.

The previous prime is 68942411. The next prime is 68942413. The reversal of 68942412 is 21424986.

It is an interprime number because it is at equal distance from previous prime (68942411) and next prime (68942413).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68942411) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 3628539 + ... + 3628557.

Almost surely, 268942412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68942412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124176780).

68942412 is an abundant number, since it is smaller than the sum of its proper divisors (179411148).

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

68942412 is a wasteful number, since it uses less digits than its factorization.

68942412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 59 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 68942412 is about 8303.1567490925. The cubic root of 68942412 is about 410.0424544577.

The spelling of 68942412 in words is "sixty-eight million, nine hundred forty-two thousand, four hundred twelve".