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272012731 = 4214491439
BaseRepresentation
bin10000001101101…
…001010110111011
3200221211200022121
4100031221112323
51024113401411
642554102111
76512033014
oct2015512673
9627750277
10272012731
1112a5a9211
127711a937
134447bca3
14281aa00b
1518d31571
hex103695bb

272012731 has 8 divisors (see below), whose sum is σ = 273456000. Its totient is φ = 270574080.

The previous prime is 272012701. The next prime is 272012749. The reversal of 272012731 is 137210272.

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 272012731 - 215 = 271979963 is a prime.

It is a super-2 number, since 2×2720127312 = 147981851652156722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 272012696 and 272012705.

It is not an unprimeable number, because it can be changed into a prime (272012701) 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, 188310 + ... + 189748.

It is an arithmetic number, because the mean of its divisors is an integer number (34182000).

Almost surely, 2272012731 is an apocalyptic number.

272012731 is a deficient number, since it is larger than the sum of its proper divisors (1443269).

272012731 is a wasteful number, since it uses less digits than its factorization.

272012731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 272012731 is about 16492.8084630848. The cubic root of 272012731 is about 647.9324687982.

It can be divided in two parts, 2720 and 12731, that added together give a palindrome (15451).

The spelling of 272012731 in words is "two hundred seventy-two million, twelve thousand, seven hundred thirty-one".

Divisors: 1 421 449 1439 189029 605819 646111 272012731