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272722945 = 51116692971
BaseRepresentation
bin10000010000010…
…110110000000001
3201000011202112211
4100100112300001
51024304113240
643021222121
76521051425
oct2020266001
9630152484
10272722945
1112aa43870
1277401941
134466a331
1428312b85
1518e21bea
hex10416c01

272722945 has 16 divisors (see below), whose sum is σ = 357353280. Its totient is φ = 198158400.

The previous prime is 272722943. The next prime is 272722951. The reversal of 272722945 is 549227272.

It is a happy number.

It is not a de Polignac number, because 272722945 - 21 = 272722943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 272722898 and 272722907.

It is not an unprimeable number, because it can be changed into a prime (272722943) 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, 90310 + ... + 93280.

It is an arithmetic number, because the mean of its divisors is an integer number (22334580).

Almost surely, 2272722945 is an apocalyptic number.

It is an amenable number.

272722945 is a deficient number, since it is larger than the sum of its proper divisors (84630335).

272722945 is a wasteful number, since it uses less digits than its factorization.

272722945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4656.

The product of its digits is 141120, while the sum is 40.

The square root of 272722945 is about 16514.3254479255. The cubic root of 272722945 is about 648.4958870288.

The spelling of 272722945 in words is "two hundred seventy-two million, seven hundred twenty-two thousand, nine hundred forty-five".

Divisors: 1 5 11 55 1669 2971 8345 14855 18359 32681 91795 163405 4958599 24792995 54544589 272722945