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2207280 = 243517541
BaseRepresentation
bin1000011010111000110000
311011010211010
420122320300
51031113110
6115150520
724522135
oct10327060
94133733
102207280
1112783a9
128a5440
135c38aa
1441658c
152d9020
hex21ae30

2207280 has 80 divisors (see below), whose sum is σ = 7258464. Its totient is φ = 552960.

The previous prime is 2207279. The next prime is 2207281. The reversal of 2207280 is 827022.

It is an interprime number because it is at equal distance from previous prime (2207279) and next prime (2207281).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (2207281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3810 + ... + 4350.

22207280 is an apocalyptic number.

2207280 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 2207280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3629232).

2207280 is an abundant number, since it is smaller than the sum of its proper divisors (5051184).

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

2207280 is a wasteful number, since it uses less digits than its factorization.

2207280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2207280 is about 1485.6917580710. The cubic root of 2207280 is about 130.2024459134.

The spelling of 2207280 in words is "two million, two hundred seven thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 20 24 30 34 40 48 51 60 68 80 85 102 120 136 170 204 240 255 272 340 408 510 541 680 816 1020 1082 1360 1623 2040 2164 2705 3246 4080 4328 5410 6492 8115 8656 9197 10820 12984 16230 18394 21640 25968 27591 32460 36788 43280 45985 55182 64920 73576 91970 110364 129840 137955 147152 183940 220728 275910 367880 441456 551820 735760 1103640 2207280