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30973033337 = 71514331287
BaseRepresentation
bin11100110110001000…
…101111101101111001
32221221120020010011212
4130312020233231321
51001413044031322
622121231332505
72144353303511
oct346610575571
987846203155
1030973033337
1112154519414
126004981135
132bc7b4cb7c
1416db776841
15c142800e2
hex73622fb79

30973033337 has 4 divisors (see below), whose sum is σ = 30977371776. Its totient is φ = 30968694900.

The previous prime is 30973033313. The next prime is 30973033349. The reversal of 30973033337 is 73333037903.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73333037903 = 99773553699.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30973033337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30973033294 and 30973033303.

It is not an unprimeable number, because it can be changed into a prime (30973033837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2158493 + ... + 2172794.

It is an arithmetic number, because the mean of its divisors is an integer number (7744342944).

Almost surely, 230973033337 is an apocalyptic number.

It is an amenable number.

30973033337 is a deficient number, since it is larger than the sum of its proper divisors (4338439).

30973033337 is an equidigital number, since it uses as much as digits as its factorization.

30973033337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338438.

The product of its (nonzero) digits is 321489, while the sum is 41.

The spelling of 30973033337 in words is "thirty billion, nine hundred seventy-three million, thirty-three thousand, three hundred thirty-seven".

Divisors: 1 7151 4331287 30973033337