Search a number
-
+
123130210 = 2571759003
BaseRepresentation
bin1110101011011…
…01000101100010
322120200122220011
413111231011202
5223010131320
620115035134
73023406130
oct725550542
9276618804
10123130210
116355a605
123529baaa
131c681918
14124d2750
15ac2305a
hex756d162

123130210 has 16 divisors (see below), whose sum is σ = 253296576. Its totient is φ = 42216048.

The previous prime is 123130207. The next prime is 123130213. The reversal of 123130210 is 12031321.

It is an interprime number because it is at equal distance from previous prime (123130207) and next prime (123130213).

It is a super-2 number, since 2×1231302102 = 30322097229288200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123130213) 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, 879432 + ... + 879571.

It is an arithmetic number, because the mean of its divisors is an integer number (15831036).

Almost surely, 2123130210 is an apocalyptic number.

123130210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123130210 is an abundant number, since it is smaller than the sum of its proper divisors (130166366).

123130210 is a wasteful number, since it uses less digits than its factorization.

123130210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759017.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 123130210 is about 11096.4052737812. The cubic root of 123130210 is about 497.4944116945.

Adding to 123130210 its reverse (12031321), we get a palindrome (135161531).

The spelling of 123130210 in words is "one hundred twenty-three million, one hundred thirty thousand, two hundred ten".

Divisors: 1 2 5 7 10 14 35 70 1759003 3518006 8795015 12313021 17590030 24626042 61565105 123130210