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213130101 = 3374740853
BaseRepresentation
bin11001011010000…
…01101101110101
3112212001010112110
430231001231311
5414030130401
633052041233
75165401362
oct1455015565
9485033473
10213130101
11aa340888
125b463219
13352037b2
142043d469
1513a9e9d6
hexcb41b75

213130101 has 16 divisors (see below), whose sum is σ = 298070784. Its totient is φ = 135301824.

The previous prime is 213130079. The next prime is 213130103. The reversal of 213130101 is 101031312.

It is not a de Polignac number, because 213130101 - 25 = 213130069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213130103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15210 + ... + 25643.

It is an arithmetic number, because the mean of its divisors is an integer number (18629424).

Almost surely, 2213130101 is an apocalyptic number.

It is an amenable number.

213130101 is a deficient number, since it is larger than the sum of its proper divisors (84940683).

213130101 is a wasteful number, since it uses less digits than its factorization.

213130101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40940.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 213130101 is about 14598.9760257355. The cubic root of 213130101 is about 597.3308296012.

Adding to 213130101 its reverse (101031312), we get a palindrome (314161413).

The spelling of 213130101 in words is "two hundred thirteen million, one hundred thirty thousand, one hundred one".

Divisors: 1 3 37 47 111 141 1739 5217 40853 122559 1511561 1920091 4534683 5760273 71043367 213130101