Search a number
-
+
3208985137 = 97149222029
BaseRepresentation
bin1011111101000101…
…0011101000110001
322021122021100001101
42333101103220301
523033000011022
61250231404401
7142343631541
oct27721235061
98248240041
103208985137
1113a7430036
12756823701
133c1a96497
14226287321
1513bac5627
hexbf453a31

3208985137 has 8 divisors (see below), whose sum is σ = 3263841000. Its totient is φ = 3154573824.

The previous prime is 3208985023. The next prime is 3208985141. The reversal of 3208985137 is 7315898023.

It can be written as a sum of positive squares in 4 ways, for example, as 65028096 + 3143957041 = 8064^2 + 56071^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3208985137 - 27 = 3208985009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3208985177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96562 + ... + 125467.

It is an arithmetic number, because the mean of its divisors is an integer number (407980125).

Almost surely, 23208985137 is an apocalyptic number.

It is an amenable number.

3208985137 is a deficient number, since it is larger than the sum of its proper divisors (54855863).

3208985137 is a wasteful number, since it uses less digits than its factorization.

3208985137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222275.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 3208985137 is about 56647.9049656737. The cubic root of 3208985137 is about 1474.9905408950.

The spelling of 3208985137 in words is "three billion, two hundred eight million, nine hundred eighty-five thousand, one hundred thirty-seven".

Divisors: 1 97 149 14453 222029 21536813 33082321 3208985137