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270145600 = 26521091549
BaseRepresentation
bin10000000110100…
…001100001000000
3200211022211002121
4100012201201000
51023124124400
642450054024
76460125334
oct2006414100
9624284077
10270145600
1112954342a
127657a314
1343c7718a
1427c417c4
1518ab321a
hex101a1840

270145600 has 84 divisors (see below), whose sum is σ = 671258500. Its totient is φ = 106997760.

The previous prime is 270145583. The next prime is 270145627. The reversal of 270145600 is 6541072.

It can be written as a sum of positive squares in 6 ways, for example, as 4064256 + 266081344 = 2016^2 + 16312^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173626 + ... + 175174.

Almost surely, 2270145600 is an apocalyptic number.

270145600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 270145600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335629250).

270145600 is an abundant number, since it is smaller than the sum of its proper divisors (401112900).

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

270145600 is a wasteful number, since it uses less digits than its factorization.

270145600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 270145600 is about 16436.1065949330. The cubic root of 270145600 is about 646.4465660176.

Adding to 270145600 its reverse (6541072), we get a palindrome (276686672).

The spelling of 270145600 in words is "two hundred seventy million, one hundred forty-five thousand, six hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 109 160 200 218 320 400 436 545 800 872 1090 1549 1600 1744 2180 2725 3098 3488 4360 5450 6196 6976 7745 8720 10900 12392 15490 17440 21800 24784 30980 34880 38725 43600 49568 61960 77450 87200 99136 123920 154900 168841 174400 247840 309800 337682 495680 619600 675364 844205 1239200 1350728 1688410 2478400 2701456 3376820 4221025 5402912 6753640 8442050 10805824 13507280 16884100 27014560 33768200 54029120 67536400 135072800 270145600