Base | Representation |
---|---|
bin | 1111101001100… |
… | …01011011110000 |
3 | 100011000102201210 |
4 | 13310301123300 |
5 | 232101240410 |
6 | 21005400120 |
7 | 3152546301 |
oct | 764613360 |
9 | 304012653 |
10 | 131274480 |
11 | 68112507 |
12 | 37b69040 |
13 | 2127390c |
14 | 136127a8 |
15 | b7d1220 |
hex | 7d316f0 |
131274480 has 40 divisors (see below), whose sum is σ = 406951632. Its totient is φ = 35006464.
The previous prime is 131274463. The next prime is 131274509. The reversal of 131274480 is 84472131.
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (30).
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, 273249 + ... + 273728.
Almost surely, 2131274480 is an apocalyptic number.
131274480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
131274480 is an abundant number, since it is smaller than the sum of its proper divisors (275677152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
131274480 is a wasteful number, since it uses less digits than its factorization.
131274480 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 546993 (or 546987 counting only the distinct ones).
The product of its (nonzero) digits is 5376, while the sum is 30.
The square root of 131274480 is about 11457.5075823671. The cubic root of 131274480 is about 508.2297718500.
The spelling of 131274480 in words is "one hundred thirty-one million, two hundred seventy-four thousand, four hundred eighty".
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