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272272400 = 2452680681
BaseRepresentation
bin10000001110101…
…000110000010000
3200222022212111222
4100032220300100
51024200204100
643003424212
76514164041
oct2016506020
9628285458
10272272400
1112a766314
1277225068
134454023a
14282368c8
1518d83485
hex103a8c10

272272400 has 30 divisors (see below), whose sum is σ = 654135402. Its totient is φ = 108908800.

The previous prime is 272272393. The next prime is 272272409. The reversal of 272272400 is 4272272.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 70291456 + 201980944 = 8384^2 + 14212^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 272272400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272272409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339941 + ... + 340740.

Almost surely, 2272272400 is an apocalyptic number.

272272400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272272400 is an abundant number, since it is smaller than the sum of its proper divisors (381863002).

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

272272400 is a wasteful number, since it uses less digits than its factorization.

272272400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680699 (or 680688 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 272272400 is about 16500.6787739172. The cubic root of 272272400 is about 648.1385798215.

The spelling of 272272400 in words is "two hundred seventy-two million, two hundred seventy-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 680681 1361362 2722724 3403405 5445448 6806810 10890896 13613620 17017025 27227240 34034050 54454480 68068100 136136200 272272400