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10345040240 = 245731771411
BaseRepresentation
bin10011010001001110…
…01100100101110000
3222200222000111100112
421220213030211300
5132141312241430
64430310040452
7514234251113
oct115047144560
928628014315
1010345040240
114429561937
122008649128
13c8b327cb2
14701cdc57a
15408317195
hex2689cc970

10345040240 has 40 divisors (see below), whose sum is σ = 24381714768. Its totient is φ = 4081328640.

The previous prime is 10345040231. The next prime is 10345040249. The reversal of 10345040240 is 4204054301.

It is an interprime number because it is at equal distance from previous prime (10345040231) and next prime (10345040249).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10345040249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879866 + ... + 891545.

Almost surely, 210345040240 is an apocalyptic number.

10345040240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10345040240 is an abundant number, since it is smaller than the sum of its proper divisors (14036674528).

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

10345040240 is a wasteful number, since it uses less digits than its factorization.

10345040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771497 (or 1771491 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 10345040240 its reverse (4204054301), we get a palindrome (14549094541).

The spelling of 10345040240 in words is "ten billion, three hundred forty-five million, forty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 73 80 146 292 365 584 730 1168 1460 2920 5840 1771411 3542822 7085644 8857055 14171288 17714110 28342576 35428220 70856440 129313003 141712880 258626006 517252012 646565015 1034504024 1293130030 2069008048 2586260060 5172520120 10345040240