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212981942062 = 21936607153107
BaseRepresentation
bin1100011001011010110…
…1101000011100101110
3202100202002002200010101
43012112231220130232
511442141334121222
6241501554101314
721246614431411
oct3062655503456
9670662080111
10212981942062
118236383243a
123533b27a83a
1317112a3a6b6
14a4462a9b78
15581800a927
hex3196b6872e

212981942062 has 16 divisors (see below), whose sum is σ = 336298659840. Its totient is φ = 100882768248.

The previous prime is 212981942059. The next prime is 212981942093. The reversal of 212981942062 is 260249189212.

It is a super-2 number, since 2×2129819420622 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314513 + ... + 1467619.

It is an arithmetic number, because the mean of its divisors is an integer number (21018666240).

Almost surely, 2212981942062 is an apocalyptic number.

212981942062 is a deficient number, since it is larger than the sum of its proper divisors (123316717778).

212981942062 is a wasteful number, since it uses less digits than its factorization.

212981942062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189735.

The product of its (nonzero) digits is 248832, while the sum is 46.

The spelling of 212981942062 in words is "two hundred twelve billion, nine hundred eighty-one million, nine hundred forty-two thousand, sixty-two".

Divisors: 1 2 19 38 36607 73214 153107 306214 695533 1391066 2909033 5818066 5604787949 11209575898 106490971031 212981942062