Base | Representation |
---|---|
bin | 101011111110001111… |
… | …001110011010100111 |
3 | 11111212111111102111201 |
4 | 223332033032122213 |
5 | 1233144024431111 |
6 | 33405034543331 |
7 | 3261014350543 |
oct | 537617163247 |
9 | 144774442451 |
10 | 47215077031 |
11 | 19029753221 |
12 | 9198297b47 |
13 | 45b5ac1205 |
14 | 23dc912a23 |
15 | 13651376c1 |
hex | afe3ce6a7 |
47215077031 has 16 divisors (see below), whose sum is σ = 50099005440. Its totient is φ = 44418356640.
The previous prime is 47215076983. The next prime is 47215077061. The reversal of 47215077031 is 13077051274.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 47215077031 - 217 = 47214945959 is a prime.
It is a super-2 number, since 2×472150770312 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (37).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47215077061) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1344150 + ... + 1378828.
It is an arithmetic number, because the mean of its divisors is an integer number (3131187840).
Almost surely, 247215077031 is an apocalyptic number.
47215077031 is a deficient number, since it is larger than the sum of its proper divisors (2883928409).
47215077031 is a wasteful number, since it uses less digits than its factorization.
47215077031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35934.
The product of its (nonzero) digits is 41160, while the sum is 37.
The spelling of 47215077031 in words is "forty-seven billion, two hundred fifteen million, seventy-seven thousand, thirty-one".
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