Search a number
-
+
67108970 = 256710897
BaseRepresentation
bin1000000000000…
…00000001101010
311200021111012102
410000000001222
5114134441340
610354213402
71443262655
oct400000152
9150244172
1067108970
1134976a65
121a584262
1310b98966
148cac89c
155d59215
hex400006a

67108970 has 8 divisors (see below), whose sum is σ = 120796164. Its totient is φ = 26843584.

The previous prime is 67108961. The next prime is 67108981. The reversal of 67108970 is 7980176.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 54626881 + 12482089 = 7391^2 + 3533^2 .

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

It is a super-2 number, since 2×671089702 = 9007227708921800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3355439 + ... + 3355458.

Almost surely, 267108970 is an apocalyptic number.

67108970 is a deficient number, since it is larger than the sum of its proper divisors (53687194).

67108970 is a wasteful number, since it uses less digits than its factorization.

67108970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710904.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 67108970 is about 8192.0064697240. The cubic root of 67108970 is about 406.3748832631.

The spelling of 67108970 in words is "sixty-seven million, one hundred eight thousand, nine hundred seventy".

Divisors: 1 2 5 10 6710897 13421794 33554485 67108970