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213301391 = 1918116199
BaseRepresentation
bin11001011011010…
…11100010001111
3112212100211111112
430231223202033
5414101121031
633055442235
75200013642
oct1455534217
9485324445
10213301391
11aa448546
125b52637b
1335263754
1420485a59
1513ad562b
hexcb6b88f

213301391 has 8 divisors (see below), whose sum is σ = 224688000. Its totient is φ = 201930840.

The previous prime is 213301381. The next prime is 213301427. The reversal of 213301391 is 193103312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-213301391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213301331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31310 + ... + 37508.

It is an arithmetic number, because the mean of its divisors is an integer number (28086000).

Almost surely, 2213301391 is an apocalyptic number.

213301391 is a deficient number, since it is larger than the sum of its proper divisors (11386609).

213301391 is a wasteful number, since it uses less digits than its factorization.

213301391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8029.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 213301391 is about 14604.8413548385. The cubic root of 213301391 is about 597.4908091932.

The spelling of 213301391 in words is "two hundred thirteen million, three hundred one thousand, three hundred ninety-one".

Divisors: 1 19 1811 6199 34409 117781 11226389 213301391