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10031240 = 2351967197
BaseRepresentation
bin100110010001…
…000010001000
3200212122021102
4212101002020
510031444430
6555000532
7151156412
oct46210210
920778242
1010031240
11573168a
123439148
132102b5b
1414919b2
15d32345
hex991088

10031240 has 64 divisors (see below), whose sum is σ = 24235200. Its totient is φ = 3725568.

The previous prime is 10031237. The next prime is 10031251. The reversal of 10031240 is 4213001.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 50822 + ... + 51018.

It is an arithmetic number, because the mean of its divisors is an integer number (378675).

Almost surely, 210031240 is an apocalyptic number.

10031240 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 10031240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12117600).

10031240 is an abundant number, since it is smaller than the sum of its proper divisors (14203960).

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

10031240 is a wasteful number, since it uses less digits than its factorization.

10031240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10031240 is about 3167.2132861555. The cubic root of 10031240 is about 215.6675842520.

Adding to 10031240 its reverse (4213001), we get a palindrome (14244241).

The spelling of 10031240 in words is "ten million, thirty-one thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 19 20 38 40 67 76 95 134 152 190 197 268 335 380 394 536 670 760 788 985 1273 1340 1576 1970 2546 2680 3743 3940 5092 6365 7486 7880 10184 12730 13199 14972 18715 25460 26398 29944 37430 50920 52796 65995 74860 105592 131990 149720 250781 263980 501562 527960 1003124 1253905 2006248 2507810 5015620 10031240