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30622615105 = 529557379157
BaseRepresentation
bin11100100001010000…
…000000011001000001
32221001010212000201211
4130201100000121001
51000203342140410
622022352530121
72132566635145
oct344120003101
987033760654
1030622615105
1111a94738a75
125b27550941
132b7037b4c4
1416a6ddb225
15be361268a
hex721400641

30622615105 has 16 divisors (see below), whose sum is σ = 38082629520. Its totient is φ = 23610802432.

The previous prime is 30622615043. The next prime is 30622615147. The reversal of 30622615105 is 50151622603.

It can be written as a sum of positive squares in 8 ways, for example, as 497111616 + 30125503489 = 22296^2 + 173567^2 .

It is a cyclic number.

It is not a de Polignac number, because 30622615105 - 225 = 30589060673 is a prime.

It is a super-2 number, since 2×306226151052 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108814 + ... + 270343.

It is an arithmetic number, because the mean of its divisors is an integer number (2380164345).

Almost surely, 230622615105 is an apocalyptic number.

It is an amenable number.

30622615105 is a deficient number, since it is larger than the sum of its proper divisors (7460014415).

30622615105 is a wasteful number, since it uses less digits than its factorization.

30622615105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379748.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 30622615105 in words is "thirty billion, six hundred twenty-two million, six hundred fifteen thousand, one hundred five".

Divisors: 1 5 29 145 557 2785 16153 80765 379157 1895785 10995553 54977765 211190449 1055952245 6124523021 30622615105