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10013988240 = 24325116311959
BaseRepresentation
bin10010101001110000…
…10101010110010000
3221211220002022101100
421110320111112100
5131002040110430
64333402304400
7503104331664
oct112470252620
927756068340
1010013988240
1142796a9643
121b357b8100
13c37877439
146add648a4
153d9222960
hex254e15590

10013988240 has 120 divisors (see below), whose sum is σ = 33662041920. Its totient is φ = 2667877632.

The previous prime is 10013988217. The next prime is 10013988241. The reversal of 10013988240 is 4288931001.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 10013988195 and 10013988204.

It is not an unprimeable number, because it can be changed into a prime (10013988241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 831381 + ... + 843339.

It is an arithmetic number, because the mean of its divisors is an integer number (280517016).

Almost surely, 210013988240 is an apocalyptic number.

10013988240 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 10013988240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16831020960).

10013988240 is an abundant number, since it is smaller than the sum of its proper divisors (23648053680).

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

10013988240 is a wasteful number, since it uses less digits than its factorization.

10013988240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13141 (or 13132 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 10013988240 in words is "ten billion, thirteen million, nine hundred eighty-eight thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 1163 2326 3489 4652 5815 6978 9304 10467 11630 11959 13956 17445 18608 20934 23260 23918 27912 34890 35877 41868 46520 47836 52335 55824 59795 69780 71754 83736 93040 95672 104670 107631 119590 139560 143508 167472 179385 191344 209340 215262 239180 279120 287016 358770 418680 430524 478360 538155 574032 717540 837360 861048 956720 1076310 1435080 1722096 2152620 2870160 4305240 8610480 13908317 27816634 41724951 55633268 69541585 83449902 111266536 125174853 139083170 166899804 208624755 222533072 250349706 278166340 333799608 417249510 500699412 556332680 625874265 667599216 834499020 1001398824 1112665360 1251748530 1668998040 2002797648 2503497060 3337996080 5006994120 10013988240