Base | Representation |
---|---|
bin | 10010011111001… |
… | …01000100111010 |
3 | 101210210211100120 |
4 | 21033211010322 |
5 | 304200011340 |
6 | 23215514110 |
7 | 3562102164 |
oct | 1117450472 |
9 | 353724316 |
10 | 155078970 |
11 | 7a5a1142 |
12 | 43b28936 |
13 | 26189907 |
14 | 1684b934 |
15 | d9344d0 |
hex | 93e513a |
155078970 has 16 divisors (see below), whose sum is σ = 372189600. Its totient is φ = 41354384.
The previous prime is 155078939. The next prime is 155078971. The reversal of 155078970 is 79870551.
155078970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (155078971) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2584620 + ... + 2584679.
It is an arithmetic number, because the mean of its divisors is an integer number (23261850).
Almost surely, 2155078970 is an apocalyptic number.
155078970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
155078970 is an abundant number, since it is smaller than the sum of its proper divisors (217110630).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
155078970 is a wasteful number, since it uses less digits than its factorization.
155078970 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5169309.
The product of its (nonzero) digits is 88200, while the sum is 42.
The square root of 155078970 is about 12453.0707056533. The cubic root of 155078970 is about 537.2597462410.
The spelling of 155078970 in words is "one hundred fifty-five million, seventy-eight thousand, nine hundred seventy".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •