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219252097 = 7925710799
BaseRepresentation
bin11010001000110…
…00010110000001
3120021120011100001
431010120112001
5422112031342
633431200001
75301416641
oct1504302601
9507504301
10219252097
11102842389
1261516001
133656818c
1421194521
15143ad8b7
hexd118581

219252097 has 8 divisors (see below), whose sum is σ = 222912000. Its totient is φ = 215614464.

The previous prime is 219252091. The next prime is 219252101. The reversal of 219252097 is 790252912.

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

It is a cyclic number.

It is not a de Polignac number, because 219252097 - 223 = 210863489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219252091) 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, 14904 + ... + 25702.

It is an arithmetic number, because the mean of its divisors is an integer number (27864000).

Almost surely, 2219252097 is an apocalyptic number.

It is an amenable number.

219252097 is a deficient number, since it is larger than the sum of its proper divisors (3659903).

219252097 is a wasteful number, since it uses less digits than its factorization.

219252097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11135.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 219252097 is about 14807.1637054501. The cubic root of 219252097 is about 602.9962138580.

It can be divided in two parts, 2192 and 52097, that added together give a square (54289 = 2332).

The spelling of 219252097 in words is "two hundred nineteen million, two hundred fifty-two thousand, ninety-seven".

Divisors: 1 79 257 10799 20303 853121 2775343 219252097