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212130124 = 22139381529
BaseRepresentation
bin11001010010011…
…01100101001100
3112210011022211021
430221031211030
5413301130444
633014403524
75154035113
oct1451154514
9483138737
10212130124
11a9818558
125b0605a4
1334c435ab
142025cc7a
1513953584
hexca4d94c

212130124 has 12 divisors (see below), whose sum is σ = 373899400. Its totient is φ = 105301728.

The previous prime is 212130119. The next prime is 212130151. The reversal of 212130124 is 421031212.

It is a junction number, because it is equal to n+sod(n) for n = 212130098 and 212130107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190209 + ... + 191320.

Almost surely, 2212130124 is an apocalyptic number.

It is an amenable number.

212130124 is a deficient number, since it is larger than the sum of its proper divisors (161769276).

212130124 is a wasteful number, since it uses less digits than its factorization.

212130124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381672 (or 381670 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 212130124 is about 14564.6875695979. The cubic root of 212130124 is about 596.3951668186.

Adding to 212130124 its reverse (421031212), we get a palindrome (633161336).

The spelling of 212130124 in words is "two hundred twelve million, one hundred thirty thousand, one hundred twenty-four".

Divisors: 1 2 4 139 278 556 381529 763058 1526116 53032531 106065062 212130124