Base | Representation |
---|---|
bin | 100001000011101000… |
… | …0001000100110110110 |
3 | 20210020022122001220100 |
4 | 1002013100020212312 |
5 | 2130341042133304 |
6 | 52340044414530 |
7 | 5062110255120 |
oct | 1020720104666 |
9 | 223208561810 |
10 | 70988630454 |
11 | 2811925a835 |
12 | 11911b47446 |
13 | 69042037a1 |
14 | 3616044210 |
15 | 1ca72e8439 |
hex | 10874089b6 |
70988630454 has 48 divisors (see below), whose sum is σ = 175861850112. Its totient is φ = 20273179824.
The previous prime is 70988630443. The next prime is 70988630467. The reversal of 70988630454 is 45403688907.
70988630454 is a `hidden beast` number, since 70 + 98 + 8 + 6 + 30 + 454 = 666.
It is a super-2 number, since 2×709886304542 (a number of 23 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 70988630454.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149707 + ... + 405449.
It is an arithmetic number, because the mean of its divisors is an integer number (3663788544).
Almost surely, 270988630454 is an apocalyptic number.
70988630454 is an abundant number, since it is smaller than the sum of its proper divisors (104873219658).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70988630454 is a wasteful number, since it uses less digits than its factorization.
70988630454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 257961 (or 257958 counting only the distinct ones).
The product of its (nonzero) digits is 5806080, while the sum is 54.
The spelling of 70988630454 in words is "seventy billion, nine hundred eighty-eight million, six hundred thirty thousand, four hundred fifty-four".
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