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23302220312 = 2371921900583
BaseRepresentation
bin10101101100111010…
…111010101000011000
32020010222020102220202
4111230322322220120
5340210332022222
614412131241332
71453310414240
oct255472725030
966128212822
1023302220312
119978550018
124623a49248
132274886757
1411b0abcb20
15915b0b892
hex56cebaa18

23302220312 has 32 divisors (see below), whose sum is σ = 52561401600. Its totient is φ = 9461051424.

The previous prime is 23302220261. The next prime is 23302220321. The reversal of 23302220312 is 21302220332.

It is a congruent number.

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, 10949228 + ... + 10951355.

It is an arithmetic number, because the mean of its divisors is an integer number (1642543800).

Almost surely, 223302220312 is an apocalyptic number.

It is an amenable number.

23302220312 is an abundant number, since it is smaller than the sum of its proper divisors (29259181288).

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

23302220312 is a wasteful number, since it uses less digits than its factorization.

23302220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21900615 (or 21900611 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23302220312 its sum of digits (20), we get a palindrome (23302220332).

Adding to 23302220312 its reverse (21302220332), we get a palindrome (44604440644).

The spelling of 23302220312 in words is "twenty-three billion, three hundred two million, two hundred twenty thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 152 266 532 1064 21900583 43801166 87602332 153304081 175204664 306608162 416111077 613216324 832222154 1226432648 1664444308 2912777539 3328888616 5825555078 11651110156 23302220312