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23001120312 = 23330716371907
BaseRepresentation
bin10101011010111110…
…010011111000111000
32012100222122222100220
4111122332103320320
5334101241322222
614322213500040
71442663203542
oct253276237070
965328588326
1023001120312
119833595145
12455b041620
132227392081
141182b00692
158e9481b5c
hex55af93e38

23001120312 has 64 divisors (see below), whose sum is σ = 57755617920. Its totient is φ = 7633392768.

The previous prime is 23001120299. The next prime is 23001120391. The reversal of 23001120312 is 21302110032.

It is a junction number, because it is equal to n+sod(n) for n = 23001120291 and 23001120300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12060463 + ... + 12062369.

It is an arithmetic number, because the mean of its divisors is an integer number (902431530).

Almost surely, 223001120312 is an apocalyptic number.

It is an amenable number.

23001120312 is an abundant number, since it is smaller than the sum of its proper divisors (34754497608).

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

23001120312 is a wasteful number, since it uses less digits than its factorization.

23001120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3860 (or 3856 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23001120312 its reverse (21302110032), we get a palindrome (44303230344).

The spelling of 23001120312 in words is "twenty-three billion, one million, one hundred twenty thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 307 614 921 1228 1637 1842 1907 2456 3274 3684 3814 4911 5721 6548 7368 7628 9822 11442 13096 15256 19644 22884 39288 45768 502559 585449 1005118 1170898 1507677 1756347 2010236 2341796 3015354 3121759 3512694 4020472 4683592 6030708 6243518 7025388 9365277 12061416 12487036 14050776 18730554 24974072 37461108 74922216 958380013 1916760026 2875140039 3833520052 5750280078 7667040104 11500560156 23001120312