Base | Representation |
---|---|
bin | 1111100100100… |
… | …10011000110110 |
3 | 100002210100010000 |
4 | 13302102120312 |
5 | 231414414110 |
6 | 20543412130 |
7 | 3144164106 |
oct | 762223066 |
9 | 302710100 |
10 | 130623030 |
11 | 6780801a |
12 | 378b4046 |
13 | 210a6245 |
14 | 134c3206 |
15 | b7031c0 |
hex | 7c92636 |
130623030 has 40 divisors (see below), whose sum is σ = 351232992. Its totient is φ = 34832592.
The previous prime is 130623023. The next prime is 130623037. The reversal of 130623030 is 30326031.
It is a happy number.
130623030 is a `hidden beast` number, since 13 + 0 + 623 + 0 + 30 = 666.
It is an interprime number because it is at equal distance from previous prime (130623023) and next prime (130623037).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 130622994 and 130623012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130623037) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 79822 + ... + 81441.
Almost surely, 2130623030 is an apocalyptic number.
130623030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
130623030 is an abundant number, since it is smaller than the sum of its proper divisors (220609962).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130623030 is a wasteful number, since it uses less digits than its factorization.
130623030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 161282 (or 161273 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 130623030 is about 11429.0432670456. The cubic root of 130623030 is about 507.3876800944.
Adding to 130623030 its reverse (30326031), we get a palindrome (160949061).
It can be divided in two parts, 1306 and 23030, that added together give a square (24336 = 1562).
The spelling of 130623030 in words is "one hundred thirty million, six hundred twenty-three thousand, thirty".
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