Base | Representation |
---|---|
bin | 100001101100000100… |
… | …0001000100100101110 |
3 | 20220201212210120002000 |
4 | 1003120020020210232 |
5 | 2141130421101122 |
6 | 53122434513130 |
7 | 5140534333050 |
oct | 1033010104456 |
9 | 226655716060 |
10 | 72345487662 |
11 | 28755161728 |
12 | 120304357a6 |
13 | 6a8c358086 |
14 | 37043258d0 |
15 | 1d364ba0ac |
hex | 10d820892e |
72345487662 has 32 divisors (see below), whose sum is σ = 183734572800. Its totient is φ = 20670139224.
The previous prime is 72345487637. The next prime is 72345487667. The reversal of 72345487662 is 26678454327.
72345487662 is a `hidden beast` number, since 7 + 2 + 34 + 548 + 7 + 6 + 62 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a junction number, because it is equal to n+sod(n) for n = 72345487599 and 72345487608.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72345487667) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95694712 + ... + 95695467.
It is an arithmetic number, because the mean of its divisors is an integer number (5741705400).
Almost surely, 272345487662 is an apocalyptic number.
72345487662 is an abundant number, since it is smaller than the sum of its proper divisors (111389085138).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72345487662 is a wasteful number, since it uses less digits than its factorization.
72345487662 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 191390197 (or 191390191 counting only the distinct ones).
The product of its digits is 13547520, while the sum is 54.
The spelling of 72345487662 in words is "seventy-two billion, three hundred forty-five million, four hundred eighty-seven thousand, six hundred sixty-two".
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