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34680978 = 2321926721
BaseRepresentation
bin1000010001001…
…1000010010010
32102020222100200
42010103002102
532334242403
63235200030
7600532503
oct204230222
972228320
1034680978
1118638372
12b746016
1372537b7
14486abaa
1530a0ca3
hex2113092

34680978 has 12 divisors (see below), whose sum is σ = 75142158. Its totient is φ = 11560320.

The previous prime is 34680977. The next prime is 34680979. The reversal of 34680978 is 87908643.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (34680977) and next prime (34680979).

It can be written as a sum of positive squares in only one way, i.e., 34609689 + 71289 = 5883^2 + 267^2 .

It is not an unprimeable number, because it can be changed into a prime (34680977) 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, 963343 + ... + 963378.

Almost surely, 234680978 is an apocalyptic number.

34680978 is an abundant number, since it is smaller than the sum of its proper divisors (40461180).

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

34680978 is a wasteful number, since it uses less digits than its factorization.

34680978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926729 (or 1926726 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 34680978 is about 5889.0557817022. The cubic root of 34680978 is about 326.1097463817.

The spelling of 34680978 in words is "thirty-four million, six hundred eighty thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 9 18 1926721 3853442 5780163 11560326 17340489 34680978