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30954347245 = 513109472261
BaseRepresentation
bin11100110101000001…
…011101101011101101
32221220021001202200101
4130311001131223231
51001343303102440
622115323031101
72144035416223
oct346501355355
987807052611
1030954347245
1112144a16268
125bba66b491
132bc4009803
1416d90b0b13
15c127dd69a
hex73505daed

30954347245 has 8 divisors (see below), whose sum is σ = 37148128920. Its totient is φ = 24761536320.

The previous prime is 30954347243. The next prime is 30954347309. The reversal of 30954347245 is 54274345903.

It can be written as a sum of positive squares in 4 ways, for example, as 238980681 + 30715366564 = 15459^2 + 175258^2 .

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

It is not a de Polignac number, because 30954347245 - 21 = 30954347243 is a prime.

It is a super-2 number, since 2×309543472452 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30954347195 and 30954347204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30954347243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170586 + ... + 301675.

It is an arithmetic number, because the mean of its divisors is an integer number (4643516115).

Almost surely, 230954347245 is an apocalyptic number.

It is an amenable number.

30954347245 is a deficient number, since it is larger than the sum of its proper divisors (6193781675).

30954347245 is a wasteful number, since it uses less digits than its factorization.

30954347245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485375.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 30954347245 in words is "thirty billion, nine hundred fifty-four million, three hundred forty-seven thousand, two hundred forty-five".

Divisors: 1 5 13109 65545 472261 2361305 6190869449 30954347245