Search a number
-
+
10072280 = 2351929457
BaseRepresentation
bin100110011011…
…000011011000
3200221201120102
4212123003120
510034303110
6555514532
7151420151
oct46330330
920851512
1010072280
11575a4a9
123458a48
13211873a
1414a2928
15d3e5a5
hex99b0d8

10072280 has 64 divisors (see below), whose sum is σ = 24732000. Its totient is φ = 3677184.

The previous prime is 10072247. The next prime is 10072289. The reversal of 10072280 is 8227001.

10072280 = T90 + T91 + ... + T393.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10072289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21812 + ... + 22268.

Almost surely, 210072280 is an apocalyptic number.

10072280 is a gapful number since it is divisible by the number (10) 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 10072280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12366000).

10072280 is an abundant number, since it is smaller than the sum of its proper divisors (14659720).

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

10072280 is a wasteful number, since it uses less digits than its factorization.

10072280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 10072280 is about 3173.6855546824. The cubic root of 10072280 is about 215.9612985074.

Adding to 10072280 its reverse (8227001), we get a palindrome (18299281).

The spelling of 10072280 in words is "ten million, seventy-two thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 29 38 40 58 76 95 116 145 152 190 232 290 380 457 551 580 760 914 1102 1160 1828 2204 2285 2755 3656 4408 4570 5510 8683 9140 11020 13253 17366 18280 22040 26506 34732 43415 53012 66265 69464 86830 106024 132530 173660 251807 265060 347320 503614 530120 1007228 1259035 2014456 2518070 5036140 10072280