Base | Representation |
---|---|
bin | 100111010010100101… |
… | …001001110010110110 |
3 | 11000220010112012111100 |
4 | 213102211021302312 |
5 | 1142400020113340 |
6 | 31214123550530 |
7 | 3022310124444 |
oct | 472245116266 |
9 | 130803465440 |
10 | 42187660470 |
11 | 1698991a7aa |
12 | 821468b446 |
13 | 3c94383507 |
14 | 2082d55b94 |
15 | 116dab7830 |
hex | 9d2949cb6 |
42187660470 has 24 divisors (see below), whose sum is σ = 109687917456. Its totient is φ = 11250042768.
The previous prime is 42187660447. The next prime is 42187660483. The reversal of 42187660470 is 7406678124.
42187660470 is a `hidden beast` number, since 42 + 1 + 87 + 6 + 60 + 470 = 666.
42187660470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234375802 + ... + 234375981.
It is an arithmetic number, because the mean of its divisors is an integer number (4570329894).
Almost surely, 242187660470 is an apocalyptic number.
42187660470 is an abundant number, since it is smaller than the sum of its proper divisors (67500256986).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42187660470 is a wasteful number, since it uses less digits than its factorization.
42187660470 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 468751796 (or 468751793 counting only the distinct ones).
The product of its (nonzero) digits is 451584, while the sum is 45.
The spelling of 42187660470 in words is "forty-two billion, one hundred eighty-seven million, six hundred sixty thousand, four hundred seventy".
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