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272105897 = 7192045909
BaseRepresentation
bin10000001110000…
…000000110101001
3200222000102010012
4100032000012221
51024124342042
643000101305
76512601440
oct2016000651
9628012105
10272105897
1112a662208
1277164835
13444b250b
14281d1d57
1518d4de82
hex103801a9

272105897 has 8 divisors (see below), whose sum is σ = 327345600. Its totient is φ = 220958064.

The previous prime is 272105887. The next prime is 272105903. The reversal of 272105897 is 798501272.

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 272105897 - 26 = 272105833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272105887) 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, 1022822 + ... + 1023087.

It is an arithmetic number, because the mean of its divisors is an integer number (40918200).

Almost surely, 2272105897 is an apocalyptic number.

It is an amenable number.

272105897 is a deficient number, since it is larger than the sum of its proper divisors (55239703).

272105897 is a wasteful number, since it uses less digits than its factorization.

272105897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045935.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 272105897 is about 16495.6326644358. The cubic root of 272105897 is about 648.0064339464.

The spelling of 272105897 in words is "two hundred seventy-two million, one hundred five thousand, eight hundred ninety-seven".

Divisors: 1 7 19 133 2045909 14321363 38872271 272105897