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30600961 = 373172609
BaseRepresentation
bin111010010111…
…0111100000001
32010120200121221
41310232330001
530313212321
63011515041
7521050426
oct164567401
963520557
1030600961
1116300a56
12a2b8a81
1364556a1
1440c7d4d
152a46e41
hex1d2ef01

30600961 has 8 divisors (see below), whose sum is σ = 31539240. Its totient is φ = 29668608.

The previous prime is 30600953. The next prime is 30600967. The reversal of 30600961 is 16900603.

It can be written as a sum of positive squares in 4 ways, for example, as 3352561 + 27248400 = 1831^2 + 5220^2 .

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 30600961 - 23 = 30600953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30600967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10425 + ... + 13033.

It is an arithmetic number, because the mean of its divisors is an integer number (3942405).

Almost surely, 230600961 is an apocalyptic number.

It is an amenable number.

30600961 is a deficient number, since it is larger than the sum of its proper divisors (938279).

30600961 is a wasteful number, since it uses less digits than its factorization.

30600961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2963.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 30600961 is about 5531.8135362646. The cubic root of 30600961 is about 312.7843547238.

The spelling of 30600961 in words is "thirty million, six hundred thousand, nine hundred sixty-one".

Divisors: 1 37 317 2609 11729 96533 827053 30600961