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23213103020 = 2258313983797
BaseRepresentation
bin10101100111100110…
…111101011110101100
32012220202112210222022
4111213212331132230
5340020023244040
614355225205312
71451146056122
oct254746753654
965822483868
1023213103020
119932211968
1245ba030838
13225c283523
1411a2d21912
1590cda66b5
hex5679bd7ac

23213103020 has 24 divisors (see below), whose sum is σ = 49334839344. Its totient is φ = 9173370176.

The previous prime is 23213102993. The next prime is 23213103059. The reversal of 23213103020 is 2030131232.

It is a self number, because there is not a number n which added to its sum of digits gives 23213103020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6990239 + ... + 6993558.

It is an arithmetic number, because the mean of its divisors is an integer number (2055618306).

Almost surely, 223213103020 is an apocalyptic number.

23213103020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23213103020 is an abundant number, since it is smaller than the sum of its proper divisors (26121736324).

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

23213103020 is a wasteful number, since it uses less digits than its factorization.

23213103020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13983889 (or 13983887 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23213103020 its reverse (2030131232), we get a palindrome (25243234252).

The spelling of 23213103020 in words is "twenty-three billion, two hundred thirteen million, one hundred three thousand, twenty".

Divisors: 1 2 4 5 10 20 83 166 332 415 830 1660 13983797 27967594 55935188 69918985 139837970 279675940 1160655151 2321310302 4642620604 5803275755 11606551510 23213103020