| Base | Representation |
|---|---|
| bin | 1010101001100110111101… |
| … | …11100000010010101000000 |
| 3 | 10001220220212020101101100000 |
| 4 | 11110303132330002111000 |
| 5 | 11032202424401243140 |
| 6 | 121450542054200000 |
| 7 | 4635014001140160 |
| oct | 524633674022500 |
| 9 | 101826766341300 |
| 10 | 23419901977920 |
| 11 | 750a363124748 |
| 12 | 2762b25953000 |
| 13 | 100b644729466 |
| 14 | 5ad75a5a45a0 |
| 15 | 2a931332aa30 |
| hex | 154cdef02540 |
23419901977920 has 1344 divisors, whose sum is σ = 97039356051456. Its totient is φ = 5265663344640.
The previous prime is 23419901977897. The next prime is 23419901977921. The reversal of 23419901977920 is 2977910991432.
23419901977920 is a `hidden beast` number, since 2 + 3 + 419 + 9 + 0 + 197 + 7 + 9 + 20 = 666.
It is a tau number, because it is divible by the number of its divisors (1344).
It is a super-2 number, since 2×234199019779202 (a number of 28 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23419901977921) by changing a digit.
It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 24119363035 + ... + 24119364005.
It is an arithmetic number, because the mean of its divisors is an integer number (72201901824).
Almost surely, 223419901977920 is an apocalyptic number.
23419901977920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23419901977920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48519678025728).
23419901977920 is an abundant number, since it is smaller than the sum of its proper divisors (73619454073536).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23419901977920 is an equidigital number, since it uses as much as digits as its factorization.
23419901977920 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1690 (or 1668 counting only the distinct ones).
The product of its (nonzero) digits is 15431472, while the sum is 63.
The spelling of 23419901977920 in words is "twenty-three trillion, four hundred nineteen billion, nine hundred one million, nine hundred seventy-seven thousand, nine hundred twenty".
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