Base | Representation |
---|---|
bin | 1000011010101… |
… | …11011000001000 |
3 | 11220212111010100 |
4 | 10031113120020 |
5 | 121034044423 |
6 | 11001245400 |
7 | 1515124212 |
oct | 415273010 |
9 | 156774110 |
10 | 70612488 |
11 | 3694a231 |
12 | 1b793860 |
13 | 1182454b |
14 | 95415b2 |
15 | 62ec343 |
hex | 4357608 |
70612488 has 24 divisors (see below), whose sum is σ = 191242350. Its totient is φ = 23537472.
The previous prime is 70612481. The next prime is 70612501. The reversal of 70612488 is 88421607.
It can be written as a sum of positive squares in only one way, i.e., 64352484 + 6260004 = 8022^2 + 2502^2 .
It is a tau number, because it is divible by the number of its divisors (24).
It is a super-2 number, since 2×706124882 = 9972246923100288, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (70612481) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 490293 + ... + 490436.
Almost surely, 270612488 is an apocalyptic number.
It is an amenable number.
70612488 is an abundant number, since it is smaller than the sum of its proper divisors (120629862).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
70612488 is a wasteful number, since it uses less digits than its factorization.
70612488 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 980741 (or 980734 counting only the distinct ones).
The product of its (nonzero) digits is 21504, while the sum is 36.
The square root of 70612488 is about 8403.1237049088. The cubic root of 70612488 is about 413.3270591024.
The spelling of 70612488 in words is "seventy million, six hundred twelve thousand, four hundred eighty-eight".
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