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23001224020 = 22578710691367
BaseRepresentation
bin10101011010111110…
…101101001101010100
32012100222212020121221
4111122332231031110
5334101303132040
614322220020124
71442664115105
oct253276551524
965328766557
1023001224020
119833656055
12455b091644
1322273ca338
141182b2a3ac
158e94a274a
hex55afad354

23001224020 has 48 divisors (see below), whose sum is σ = 48444600960. Its totient is φ = 9173487744.

The previous prime is 23001223967. The next prime is 23001224131. The reversal of 23001224020 is 2042210032.

It is a junction number, because it is equal to n+sod(n) for n = 23001223985 and 23001224003.

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, 16825377 + ... + 16826743.

It is an arithmetic number, because the mean of its divisors is an integer number (1009262520).

Almost surely, 223001224020 is an apocalyptic number.

23001224020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23001224020 is an abundant number, since it is smaller than the sum of its proper divisors (25443376940).

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

23001224020 is a wasteful number, since it uses less digits than its factorization.

23001224020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232 (or 3230 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 23001224020 its reverse (2042210032), we get a palindrome (25043434052).

The spelling of 23001224020 in words is "twenty-three billion, one million, two hundred twenty-four thousand, twenty".

Divisors: 1 2 4 5 10 20 787 1069 1367 1574 2138 2734 3148 3935 4276 5345 5468 6835 7870 10690 13670 15740 21380 27340 841303 1075829 1461323 1682606 2151658 2922646 3365212 4206515 4303316 5379145 5845292 7306615 8413030 10758290 14613230 16826060 21516580 29226460 1150061201 2300122402 4600244804 5750306005 11500612010 23001224020