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30820012058 = 21173160911927
BaseRepresentation
bin11100101101000001…
…000001000000011010
32221112220021211110002
4130231001001000122
51001104410341213
622054123453002
72140514531363
oct345501010032
987486254402
1030820012058
1112086103250
125b81687162
132ba2233a34
1416c5302b6a
15c05b05658
hex72d04101a

30820012058 has 32 divisors (see below), whose sum is σ = 51159669120. Its totient is φ = 13807445760.

The previous prime is 30820012057. The next prime is 30820012103. The reversal of 30820012058 is 85021002803.

It is a self number, because there is not a number n which added to its sum of digits gives 30820012058.

It is not an unprimeable number, because it can be changed into a prime (30820012057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2578091 + ... + 2590017.

It is an arithmetic number, because the mean of its divisors is an integer number (1598739660).

Almost surely, 230820012058 is an apocalyptic number.

30820012058 is a deficient number, since it is larger than the sum of its proper divisors (20339657062).

30820012058 is a wasteful number, since it uses less digits than its factorization.

30820012058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13622.

The product of its (nonzero) digits is 3840, while the sum is 29.

The spelling of 30820012058 in words is "thirty billion, eight hundred twenty million, twelve thousand, fifty-eight".

Divisors: 1 2 11 22 73 146 803 1606 1609 3218 11927 17699 23854 35398 117457 131197 234914 262394 870671 1292027 1741342 2584054 9577381 19154762 19190543 38381086 211095973 422191946 1400909639 2801819278 15410006029 30820012058