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23212003003 = 72473714347
BaseRepresentation
bin10101100111100010…
…110000111010111011
32012220200110221000221
4111213202300322323
5340014233044003
614355145440511
71451133525100
oct254742607273
965820427027
1023212003003
119931630462
1245b97a0137
13225bc89927
1411a2b16aa7
1590cc3a7bd
hex5678b0ebb

23212003003 has 6 divisors (see below), whose sum is σ = 27001717836. Its totient is φ = 19896002532.

The previous prime is 23212002991. The next prime is 23212003007. The reversal of 23212003003 is 30030021232.

It is not a de Polignac number, because 23212003003 - 25 = 23212002971 is a prime.

It is a super-2 number, since 2×232120030032 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23212003007) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 236857125 + ... + 236857222.

It is an arithmetic number, because the mean of its divisors is an integer number (4500286306).

Almost surely, 223212003003 is an apocalyptic number.

23212003003 is a deficient number, since it is larger than the sum of its proper divisors (3789714833).

23212003003 is an equidigital number, since it uses as much as digits as its factorization.

23212003003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473714361 (or 473714354 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 23212003003 its reverse (30030021232), we get a palindrome (53242024235).

The spelling of 23212003003 in words is "twenty-three billion, two hundred twelve million, three thousand, three".

Divisors: 1 7 49 473714347 3316000429 23212003003