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30773029 = 72628021
BaseRepresentation
bin111010101100…
…0111100100101
32010220102122211
41311120330211
530334214104
63015323421
7522365200
oct165307445
963812584
1030773029
1116409261
12a380571
1364b5ac1
144130937
152a7ce04
hex1d58f25

30773029 has 6 divisors (see below), whose sum is σ = 35797254. Its totient is φ = 26376840.

The previous prime is 30773023. The next prime is 30773047. The reversal of 30773029 is 92037703.

It can be written as a sum of positive squares in only one way, i.e., 24770529 + 6002500 = 4977^2 + 2450^2 .

It is not a de Polignac number, because 30773029 - 23 = 30773021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30773021) 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, 313962 + ... + 314059.

It is an arithmetic number, because the mean of its divisors is an integer number (5966209).

Almost surely, 230773029 is an apocalyptic number.

It is an amenable number.

30773029 is a deficient number, since it is larger than the sum of its proper divisors (5024225).

30773029 is an equidigital number, since it uses as much as digits as its factorization.

30773029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628035 (or 628028 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 30773029 is about 5547.3443195821. The cubic root of 30773029 is about 313.3695173494.

The spelling of 30773029 in words is "thirty million, seven hundred seventy-three thousand, twenty-nine".

Divisors: 1 7 49 628021 4396147 30773029