Search a number
-
+
213061254 = 23718128027
BaseRepresentation
bin11001011001100…
…00111010000110
3112211220122002120
430230300322012
5414020430004
633050350410
75164663560
oct1454607206
9484818076
10213061254
11aa2a408a
125b42b406
13351ab363
1420422330
1513a893d9
hexcb30e86

213061254 has 32 divisors (see below), whose sum is σ = 489705216. Its totient is φ = 60536160.

The previous prime is 213061241. The next prime is 213061267. The reversal of 213061254 is 452160312.

It is an interprime number because it is at equal distance from previous prime (213061241) and next prime (213061267).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6412 + ... + 21615.

It is an arithmetic number, because the mean of its divisors is an integer number (15303288).

Almost surely, 2213061254 is an apocalyptic number.

213061254 is an abundant number, since it is smaller than the sum of its proper divisors (276643962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213061254 is a wasteful number, since it uses less digits than its factorization.

213061254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28220.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 213061254 is about 14596.6178959374. The cubic root of 213061254 is about 597.2665044709.

The spelling of 213061254 in words is "two hundred thirteen million, sixty-one thousand, two hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 181 362 543 1086 1267 2534 3801 7602 28027 56054 84081 168162 196189 392378 588567 1177134 5072887 10145774 15218661 30437322 35510209 71020418 106530627 213061254