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2130021030 = 2351923162473
BaseRepresentation
bin111111011110101…
…1000101010100110
312111110000021112210
41332331120222212
513330241133110
6551205424250
7103532610564
oct17675305246
95443007483
102130021030
119a3383365
124b540b086
1327c39c597
14162c62a34
15c6ee7520
hex7ef58aa6

2130021030 has 64 divisors (see below), whose sum is σ = 5615101440. Its totient is φ = 514711296.

The previous prime is 2130020987. The next prime is 2130021037. The reversal of 2130021030 is 301200312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2130020997 and 2130021015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130021037) 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 31 ways as a sum of consecutive naturals, for example, 68127 + ... + 94346.

It is an arithmetic number, because the mean of its divisors is an integer number (87735960).

Almost surely, 22130021030 is an apocalyptic number.

2130021030 is an abundant number, since it is smaller than the sum of its proper divisors (3485080410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2130021030 is a wasteful number, since it uses less digits than its factorization.

2130021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162525.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2130021030 is about 46152.1508707882. The cubic root of 2130021030 is about 1286.6525856722.

Adding to 2130021030 its reverse (301200312), we get a palindrome (2431221342).

The spelling of 2130021030 in words is "two billion, one hundred thirty million, twenty-one thousand, thirty".

Divisors: 1 2 3 5 6 10 15 19 23 30 38 46 57 69 95 114 115 138 190 230 285 345 437 570 690 874 1311 2185 2622 4370 6555 13110 162473 324946 487419 812365 974838 1624730 2437095 3086987 3736879 4874190 6173974 7473758 9260961 11210637 15434935 18521922 18684395 22421274 30869870 37368790 46304805 56053185 71000701 92609610 112106370 142001402 213002103 355003505 426004206 710007010 1065010515 2130021030