Base | Representation |
---|---|
bin | 11111010111101010001… |
… | …101111000111100101110 |
3 | 21122002021000011011020201 |
4 | 133113222031320330232 |
5 | 240304342234444344 |
6 | 4330152454304114 |
7 | 311513312505055 |
oct | 37275215707456 |
9 | 7562230134221 |
10 | 2155708124974 |
11 | 76125a045798 |
12 | 2a995a35803a |
13 | 128389597a71 |
14 | 764a039339c |
15 | 3b11cc8d4d4 |
hex | 1f5ea378f2e |
2155708124974 has 8 divisors (see below), whose sum is σ = 3233841145920. Its totient is φ = 1077761076336.
The previous prime is 2155708124953. The next prime is 2155708124987. The reversal of 2155708124974 is 4794218075512.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46464094 + ... + 46510465.
It is an arithmetic number, because the mean of its divisors is an integer number (404230143240).
Almost surely, 22155708124974 is an apocalyptic number.
2155708124974 is a deficient number, since it is larger than the sum of its proper divisors (1078133020946).
2155708124974 is a wasteful number, since it uses less digits than its factorization.
2155708124974 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92986154.
The product of its (nonzero) digits is 5644800, while the sum is 55.
It can be divided in two parts, 215570 and 8124974, that added together give a square (8340544 = 28882).
The spelling of 2155708124974 in words is "two trillion, one hundred fifty-five billion, seven hundred eight million, one hundred twenty-four thousand, nine hundred seventy-four".
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