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300023211220 = 22515001160561
BaseRepresentation
bin1000101110110101100…
…01101110010011010100
31001200102010121021112221
410113122301232103110
514403421420224340
6345455002352124
730450566134465
oct4273261562324
91050363537487
10300023211220
1110626a310227
124a1911bb644
13223a4897865
1410742264d6c
157c0e74644a
hex45dac6e4d4

300023211220 has 12 divisors (see below), whose sum is σ = 630048743604. Its totient is φ = 120009284480.

The previous prime is 300023211203. The next prime is 300023211227. The reversal of 300023211220 is 22112320003.

It can be written as a sum of positive squares in 2 ways, for example, as 219546599364 + 80476611856 = 468558^2 + 283684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 300023211194 and 300023211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300023211227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7500580261 + ... + 7500580300.

It is an arithmetic number, because the mean of its divisors is an integer number (52504061967).

Almost surely, 2300023211220 is an apocalyptic number.

It is an amenable number.

300023211220 is an abundant number, since it is smaller than the sum of its proper divisors (330025532384).

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

300023211220 is a wasteful number, since it uses less digits than its factorization.

300023211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15001160570 (or 15001160568 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 300023211220 its reverse (22112320003), we get a palindrome (322135531223).

The spelling of 300023211220 in words is "three hundred billion, twenty-three million, two hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 15001160561 30002321122 60004642244 75005802805 150011605610 300023211220