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1213244030 = 25121324403
BaseRepresentation
bin100100001010000…
…1010001001111110
310010112221011221002
41020110022021332
54441042302110
6320220010302
742031255415
oct11024121176
93115834832
101213244030
11572932219
1229a390992
1316448079b
14b71ba47c
15717a4aa5
hex4850a27e

1213244030 has 8 divisors (see below), whose sum is σ = 2183839272. Its totient is φ = 485297608.

The previous prime is 1213244009. The next prime is 1213244093. The reversal of 1213244030 is 304423121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12132440302 = 2943922152661281800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213243993 and 1213244011.

It is a congruent number.

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, 60662192 + ... + 60662211.

It is an arithmetic number, because the mean of its divisors is an integer number (272979909).

Almost surely, 21213244030 is an apocalyptic number.

1213244030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213244030 is a deficient number, since it is larger than the sum of its proper divisors (970595242).

1213244030 is a wasteful number, since it uses less digits than its factorization.

1213244030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121324410.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1213244030 is about 34831.6527026783. The cubic root of 1213244030 is about 1066.5536860588.

Adding to 1213244030 its reverse (304423121), we get a palindrome (1517667151).

The spelling of 1213244030 in words is "one billion, two hundred thirteen million, two hundred forty-four thousand, thirty".

Divisors: 1 2 5 10 121324403 242648806 606622015 1213244030