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272390872 = 231321112413
BaseRepresentation
bin10000001111000…
…101101011011000
3200222112220000211
4100033011223120
51024213001442
643010140504
76515166325
oct2017055330
9628486024
10272390872
1112a837326
1277281734
1344582140
1428267b4c
1518da8617
hex103c5ad8

272390872 has 32 divisors (see below), whose sum is σ = 552671280. Its totient is φ = 125112960.

The previous prime is 272390869. The next prime is 272390873. The reversal of 272390872 is 278093272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272390873) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15738 + ... + 28150.

Almost surely, 2272390872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272390872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276335640).

272390872 is an abundant number, since it is smaller than the sum of its proper divisors (280280408).

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

272390872 is a wasteful number, since it uses less digits than its factorization.

272390872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12643 (or 12639 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 272390872 is about 16504.2682964135. The cubic root of 272390872 is about 648.2325728708.

The spelling of 272390872 in words is "two hundred seventy-two million, three hundred ninety thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 13 26 52 104 211 422 844 1688 2743 5486 10972 12413 21944 24826 49652 99304 161369 322738 645476 1290952 2619143 5238286 10476572 20953144 34048859 68097718 136195436 272390872