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213813038 = 2271394489
BaseRepresentation
bin11001011111010…
…00011100101110
3112220022211100102
430233220130232
5414214004123
633114431102
75204244425
oct1457503456
9486284312
10213813038
11aa76799a
125b732492
13353b25ba
142057a2bc
1513b87028
hexcbe872e

213813038 has 8 divisors (see below), whose sum is σ = 321903840. Its totient is φ = 106511760.

The previous prime is 213813007. The next prime is 213813049. The reversal of 213813038 is 830318312.

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

It is a self number, because there is not a number n which added to its sum of digits gives 213813038.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196703 + ... + 197786.

It is an arithmetic number, because the mean of its divisors is an integer number (40237980).

Almost surely, 2213813038 is an apocalyptic number.

213813038 is a deficient number, since it is larger than the sum of its proper divisors (108090802).

213813038 is a wasteful number, since it uses less digits than its factorization.

213813038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394762.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 213813038 is about 14622.3472124006. The cubic root of 213813038 is about 597.9681623449.

The spelling of 213813038 in words is "two hundred thirteen million, eight hundred thirteen thousand, thirty-eight".

Divisors: 1 2 271 542 394489 788978 106906519 213813038