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212483974 = 2106241987
BaseRepresentation
bin11001010101000…
…11111110000110
3112210211022012211
430222203332012
5413343441344
633030134034
75160040543
oct1452437606
9483738184
10212483974
11a9a3a39a
125b1b131a
1335038681
1420311bca
15139c3334
hexcaa3f86

212483974 has 4 divisors (see below), whose sum is σ = 318725964. Its totient is φ = 106241986.

The previous prime is 212483939. The next prime is 212483977. The reversal of 212483974 is 479384212.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212483977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53120992 + ... + 53120995.

It is an arithmetic number, because the mean of its divisors is an integer number (79681491).

Almost surely, 2212483974 is an apocalyptic number.

212483974 is a deficient number, since it is larger than the sum of its proper divisors (106241990).

212483974 is a wasteful number, since it uses less digits than its factorization.

212483974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106241989.

The product of its digits is 96768, while the sum is 40.

The square root of 212483974 is about 14576.8300394839. The cubic root of 212483974 is about 596.7265942049.

The spelling of 212483974 in words is "two hundred twelve million, four hundred eighty-three thousand, nine hundred seventy-four".

Divisors: 1 2 106241987 212483974