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30819909098 = 2118316878373
BaseRepresentation
bin11100101101000000…
…100111110111101010
32221112220002121012202
4130231000213313222
51001104344042343
622054121340202
72140513622246
oct345500476752
987486077182
1030819909098
1112086042960
125b81637662
132ba21c8c04
1416c52b7426
15c05ad4db8
hex72d027dea

30819909098 has 16 divisors (see below), whose sum is σ = 51040202976. Its totient is φ = 13840265040.

The previous prime is 30819909097. The next prime is 30819909137. The reversal of 30819909098 is 89090991803.

It is not an unprimeable number, because it can be changed into a prime (30819909091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8437361 + ... + 8441012.

It is an arithmetic number, because the mean of its divisors is an integer number (3190012686).

Almost surely, 230819909098 is an apocalyptic number.

30819909098 is a deficient number, since it is larger than the sum of its proper divisors (20220293878).

30819909098 is a wasteful number, since it uses less digits than its factorization.

30819909098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16878469.

The product of its (nonzero) digits is 1259712, while the sum is 56.

The spelling of 30819909098 in words is "thirty billion, eight hundred nineteen million, nine hundred nine thousand, ninety-eight".

Divisors: 1 2 11 22 83 166 913 1826 16878373 33756746 185662103 371324206 1400904959 2801809918 15409954549 30819909098