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213120130030 = 25238331135897
BaseRepresentation
bin1100011001111011110…
…0110001101111101110
3202101002201010100101021
43012132330301233232
511442432223130110
6241523412004354
721253213133653
oct3063674615756
9671081110337
10213120130030
1182424837075
12353796006ba
1317135562022
14a45a79bc2a
1558252052da
hex319ef31bee

213120130030 has 64 divisors (see below), whose sum is σ = 406431986688. Its totient is φ = 80297916160.

The previous prime is 213120129977. The next prime is 213120130039. The reversal of 213120130030 is 30031021312.

It is a junction number, because it is equal to n+sod(n) for n = 213120129986 and 213120130013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213120130039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5919042 + ... + 5954938.

It is an arithmetic number, because the mean of its divisors is an integer number (6350499792).

Almost surely, 2213120130030 is an apocalyptic number.

213120130030 is a deficient number, since it is larger than the sum of its proper divisors (193311856658).

213120130030 is a wasteful number, since it uses less digits than its factorization.

213120130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36321.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 213120130030 its reverse (30031021312), we get a palindrome (243151151342).

The spelling of 213120130030 in words is "two hundred thirteen billion, one hundred twenty million, one hundred thirty thousand, thirty".

Divisors: 1 2 5 10 23 46 83 115 166 230 311 415 622 830 1555 1909 3110 3818 7153 9545 14306 19090 25813 35765 35897 51626 71530 71794 129065 179485 258130 358970 593699 825631 1187398 1651262 2968495 2979451 4128155 5936990 5958902 8256310 11163967 14897255 22327934 29794510 55819835 68527373 111639670 137054746 256771241 342636865 513542482 685273730 926609261 1283856205 1853218522 2567712410 4633046305 9266092610 21312013003 42624026006 106560065015 213120130030