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272144990 = 251329371951
BaseRepresentation
bin10000001110001…
…001101001011110
3200222002101202002
4100032021221132
51024132114430
643001002302
76513123425
oct2016115136
9628071662
10272144990
1112a689617
1277183392
13444c7250
14282022bc
1518d5a845
hex10389a5e

272144990 has 64 divisors (see below), whose sum is σ = 560770560. Its totient is φ = 94348800.

The previous prime is 272144911. The next prime is 272145007. The reversal of 272144990 is 99441272.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 138515 + ... + 140465.

It is an arithmetic number, because the mean of its divisors is an integer number (8762040).

Almost surely, 2272144990 is an apocalyptic number.

272144990 is an abundant number, since it is smaller than the sum of its proper divisors (288625570).

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

272144990 is a wasteful number, since it uses less digits than its factorization.

272144990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 272144990 is about 16496.8175718834. The cubic root of 272144990 is about 648.0374651280.

The spelling of 272144990 in words is "two hundred seventy-two million, one hundred forty-four thousand, nine hundred ninety".

Divisors: 1 2 5 10 13 26 29 37 58 65 74 130 145 185 290 370 377 481 754 962 1073 1885 1951 2146 2405 3770 3902 4810 5365 9755 10730 13949 19510 25363 27898 50726 56579 69745 72187 113158 126815 139490 144374 253630 282895 360935 565790 721870 735527 938431 1471054 1876862 2093423 3677635 4186846 4692155 7355270 9384310 10467115 20934230 27214499 54428998 136072495 272144990